Best Tutorials

Popular picks and great starting points.

Angular

ANGULAR: Angular Introduction

Learn Angular Introduction in ANGULAR with practical examples.

ANGULAR: Angular CLI

Learn Angular CLI in ANGULAR with practical examples.

ANGULAR: Components

Learn Components in ANGULAR with practical examples.

ANGULAR: Templates

Learn Templates in ANGULAR with practical examples.

ANGULAR: Data Binding

Learn Data Binding in ANGULAR with practical examples.

ANGULAR: Services

Learn Services in ANGULAR with practical examples.

ANGULAR: Dependency Injection

Learn Dependency Injection in ANGULAR with practical examples.

ANGULAR: Routing

Learn Routing in ANGULAR with practical examples.

Learn Forms in ANGULAR with practical examples.

ANGULAR: HTTP Client

Learn HTTP Client in ANGULAR with practical examples.

Bootstrap

BOOTSTRAP: Bootstrap Basics

Learn Bootstrap Basics in BOOTSTRAP with practical examples.

BOOTSTRAP: Grid System

Learn Grid System in BOOTSTRAP with practical examples.

BOOTSTRAP: Typography

Learn Typography in BOOTSTRAP with practical examples.

BOOTSTRAP: Buttons

Learn Buttons in BOOTSTRAP with practical examples.

BOOTSTRAP: Forms

Learn Forms in BOOTSTRAP with practical examples.

BOOTSTRAP: Navbar

Learn Navbar in BOOTSTRAP with practical examples.

BOOTSTRAP: Cards

Learn Cards in BOOTSTRAP with practical examples.

BOOTSTRAP: Modals

Learn Modals in BOOTSTRAP with practical examples.

BOOTSTRAP: Utilities

Learn Utilities in BOOTSTRAP with practical examples.

C

C: C Introduction

Learn C Introduction in C with practical examples.

C: Introduction

Start learning C with a quick overview and Hello World.

Learn Variables in C with practical examples.

C syntax starter + common patterns.

Learn Operators in C with practical examples.

Learn Functions in C with practical examples.

Learn Pointers in C with practical examples.

Learn Arrays in C with practical examples.

Learn Strings in C with practical examples.

Learn Structs in C with practical examples.

C: Dynamic Memory

Learn Dynamic Memory in C with practical examples.

Learn File I/O in C with practical examples.

C++

CPP: C++ Introduction

Learn C++ Introduction in CPP with short examples.

CPP: C++ Introduction

Learn C++ Introduction in CPP with practical examples.

C++: Introduction

Start learning C++ with a quick overview and Hello World.

Learn OOP in CPP with practical examples.

C++ syntax starter + common patterns.

CPP: STL Containers

Learn STL Containers in CPP with practical examples.

Learn Iterators in CPP with practical examples.

CPP: Algorithms

Learn Algorithms in CPP with practical examples.

Learn Templates in CPP with practical examples.

CPP: References

Learn References in CPP with practical examples.

CPP: Smart Pointers

Learn Smart Pointers in CPP with practical examples.

CPP: Move Semantics

Learn Move Semantics in CPP with practical examples.

C#

CSHARP: C# Introduction

Learn C# Introduction in CSHARP with practical examples.

C#: Introduction

Start learning C# with a quick overview and Hello World.

CSHARP: .NET Basics

Learn .NET Basics in CSHARP with practical examples.

C# syntax starter + common patterns.

CSHARP: Classes

Learn Classes in CSHARP with practical examples.

CSHARP: Interfaces

Learn Interfaces in CSHARP with practical examples.

CSHARP: Collections

Learn Collections in CSHARP with practical examples.

Learn LINQ in CSHARP with practical examples.

CSHARP: Async/Await

Learn Async/Await in CSHARP with practical examples.

CSHARP: Exceptions

Learn Exceptions in CSHARP with practical examples.

CSHARP: Generics

Learn Generics in CSHARP with practical examples.

CSHARP: Entity Framework Core

Learn Entity Framework Core in CSHARP with practical examples.

CSS

CSS: CSS Basics

Learn CSS Basics in CSS with practical examples.

CSS: Introduction

Start learning CSS with a quick overview and Hello World.

Learn Selectors in CSS with practical examples.

CSS syntax starter + common patterns.

Learn Box Model in CSS with practical examples.

Learn Colors in CSS with practical examples.

CSS: Typography

Learn Typography in CSS with practical examples.

Learn Flexbox in CSS with practical examples.

Learn Grid in CSS with practical examples.

Learn Position in CSS with practical examples.

CSS: Responsive Design

Learn Responsive Design in CSS with practical examples.

CSS: Animations

Learn Animations in CSS with practical examples.

Dart

DART: Dart Introduction

Learn Dart Introduction in DART with practical examples.

Dart: Introduction

Start learning Dart with a quick overview and Hello World.

Learn Types in DART with practical examples.

Dart syntax starter + common patterns.

DART: Functions

Learn Functions in DART with practical examples.

Learn Classes in DART with practical examples.

DART: Null Safety

Learn Null Safety in DART with practical examples.

Learn Futures in DART with practical examples.

Learn Streams in DART with practical examples.

DART: Collections

Learn Collections in DART with practical examples.

Learn Packages in DART with practical examples.

Learn HTTP in DART with practical examples.

Git

GIT: Git Basics

Learn Git Basics in GIT with practical examples.

Learn Commit in GIT with practical examples.

Learn Branching in GIT with practical examples.

Learn Merging in GIT with practical examples.

Learn Rebase in GIT with practical examples.

Learn Tags in GIT with practical examples.

GIT: GitHub Flow

Learn GitHub Flow in GIT with practical examples.

GIT: Undo Changes

Learn Undo Changes in GIT with practical examples.

Learn Stash in GIT with practical examples.

GIT: Cherry-pick

Learn Cherry-pick in GIT with practical examples.

Go

GO: Go Introduction

Learn Go Introduction in GO with practical examples.

Go: Introduction

Start learning Go with a quick overview and Hello World.

Learn Packages in GO with practical examples.

Go syntax starter + common patterns.

Learn Variables in GO with practical examples.

Learn Functions in GO with practical examples.

Learn Structs in GO with practical examples.

Learn Interfaces in GO with practical examples.

GO: Error Handling

Learn Error Handling in GO with practical examples.

Learn Goroutines in GO with practical examples.

Learn Channels in GO with practical examples.

Learn Testing in GO with practical examples.

HTML

HTML: HTML Introduction

Learn HTML Introduction in HTML with practical examples.

HTML: Introduction

Start learning HTML with a quick overview and Hello World.

Learn Headings in HTML with practical examples.

HTML syntax starter + common patterns.

HTML: Paragraphs

Learn Paragraphs in HTML with practical examples.

Learn Links in HTML with practical examples.

Learn Images in HTML with practical examples.

Learn Lists in HTML with practical examples.

Learn Tables in HTML with practical examples.

Learn Forms in HTML with practical examples.

HTML: Semantic Elements

Learn Semantic Elements in HTML with practical examples.

HTML: Meta & SEO

Learn Meta & SEO in HTML with practical examples.

Java

JAVA: Java Introduction

Learn Java Introduction in JAVA with practical examples.

Java: Introduction

Start learning Java with a quick overview and Hello World.

JAVA: Variables

Learn Variables in JAVA with practical examples.

Java syntax starter + common patterns.

JAVA: Control Flow

Learn Control Flow in JAVA with practical examples.

Learn Methods in JAVA with practical examples.

Learn Arrays in JAVA with practical examples.

JAVA: OOP Basics

Learn OOP Basics in JAVA with practical examples.

Learn Classes in JAVA with practical examples.

JAVA: Inheritance

Learn Inheritance in JAVA with practical examples.

JAVA: Interfaces

Learn Interfaces in JAVA with practical examples.

JAVA: Collections

Learn Collections in JAVA with practical examples.

jQuery

JQUERY: jQuery Basics

Learn jQuery Basics in JQUERY with practical examples.

JQUERY: Selectors

Learn Selectors in JQUERY with practical examples.

JQUERY: DOM Manipulation

Learn DOM Manipulation in JQUERY with practical examples.

Learn Events in JQUERY with practical examples.

Learn AJAX in JQUERY with practical examples.

JQUERY: Effects

Learn Effects in JQUERY with practical examples.

JQUERY: Traversal

Learn Traversal in JQUERY with practical examples.

JQUERY: Plugins

Learn Plugins in JQUERY with practical examples.

JQUERY: Form Validation

Learn Form Validation in JQUERY with practical examples.

JavaScript

JS: JavaScript Basics

Learn JavaScript Basics in JS with practical examples.

Learn Variables in JS with practical examples.

Learn Functions in JS with practical examples.

Learn Arrays in JS with practical examples.

Learn Objects in JS with practical examples.

Learn DOM in JS with practical examples.

Learn Events in JS with practical examples.

Learn Fetch API in JS with practical examples.

Learn Promises in JS with practical examples.

JS: Async/Await

Learn Async/Await in JS with practical examples.

Learn Modules in JS with practical examples.

JS: LocalStorage

Learn LocalStorage in JS with practical examples.

Kotlin

KOTLIN: Kotlin Introduction

Learn Kotlin Introduction in KOTLIN with practical examples.

Kotlin: Introduction

Start learning Kotlin with a quick overview and Hello World.

KOTLIN: Variables

Learn Variables in KOTLIN with practical examples.

Kotlin syntax starter + common patterns.

KOTLIN: Null Safety

Learn Null Safety in KOTLIN with practical examples.

KOTLIN: Functions

Learn Functions in KOTLIN with practical examples.

KOTLIN: Classes

Learn Classes in KOTLIN with practical examples.

KOTLIN: Data Classes

Learn Data Classes in KOTLIN with practical examples.

KOTLIN: Collections

Learn Collections in KOTLIN with practical examples.

KOTLIN: Lambdas

Learn Lambdas in KOTLIN with practical examples.

KOTLIN: Coroutines

Learn Coroutines in KOTLIN with practical examples.

KOTLIN: Extensions

Learn Extensions in KOTLIN with practical examples.

cats.abap

ABAP: Introduction

Start learning ABAP with a quick overview and Hello World.

ABAP syntax starter + common patterns.

cats.abc

ABC: Introduction

Start learning ABC with a quick overview and Hello World.

ABC syntax starter + common patterns.

cats.actionscript

ActionScript: Introduction

Start learning ActionScript with a quick overview and Hello World.

ActionScript: Syntax

ActionScript syntax starter + common patterns.

cats.ada

Ada: Introduction

Start learning Ada with a quick overview and Hello World.

Ada syntax starter + common patterns.

cats.algol

ALGOL: Introduction

Start learning ALGOL with a quick overview and Hello World.

ALGOL syntax starter + common patterns.

cats.ampl

AMPL: Introduction

Start learning AMPL with a quick overview and Hello World.

AMPL syntax starter + common patterns.

cats.angelscript

AngelScript: Introduction

Start learning AngelScript with a quick overview and Hello World.

AngelScript: Syntax

AngelScript syntax starter + common patterns.

cats.apex

Apex: Introduction

Start learning Apex with a quick overview and Hello World.

Apex syntax starter + common patterns.

cats.apl

APL: Introduction

Start learning APL with a quick overview and Hello World.

APL syntax starter + common patterns.

cats.applescript

AppleScript: Introduction

Start learning AppleScript with a quick overview and Hello World.

AppleScript: Syntax

AppleScript syntax starter + common patterns.

cats.arc

Arc: Introduction

Start learning Arc with a quick overview and Hello World.

Arc syntax starter + common patterns.

cats.assembly

Assembly: Introduction

Start learning Assembly with a quick overview and Hello World.

Assembly: Syntax

Assembly syntax starter + common patterns.

cats.asymptote

Asymptote: Introduction

Start learning Asymptote with a quick overview and Hello World.

Asymptote: Syntax

Asymptote syntax starter + common patterns.

cats.autohotkey

AutoHotkey: Introduction

Start learning AutoHotkey with a quick overview and Hello World.

AutoHotkey: Syntax

AutoHotkey syntax starter + common patterns.

cats.autoit

AutoIt: Introduction

Start learning AutoIt with a quick overview and Hello World.

AutoIt syntax starter + common patterns.

cats.awk

AWK: Introduction

Start learning AWK with a quick overview and Hello World.

AWK syntax starter + common patterns.

cats.b

B: Introduction

Start learning B with a quick overview and Hello World.

B syntax starter + common patterns.

cats.ballerina

Ballerina: Introduction

Start learning Ballerina with a quick overview and Hello World.

Ballerina: Syntax

Ballerina syntax starter + common patterns.

cats.bash

Bash: Introduction

Start learning Bash with a quick overview and Hello World.

Bash syntax starter + common patterns.

cats.basic

BASIC: Introduction

Start learning BASIC with a quick overview and Hello World.

BASIC syntax starter + common patterns.

cats.batch-file

Batch file: Introduction

Start learning Batch file with a quick overview and Hello World.

Batch file: Syntax

Batch file syntax starter + common patterns.

cats.bazel

Bazel: Introduction

Start learning Bazel with a quick overview and Hello World.

Bazel syntax starter + common patterns.

cats.bcpl

BCPL: Introduction

Start learning BCPL with a quick overview and Hello World.

BCPL syntax starter + common patterns.

cats.befunge

Befunge: Introduction

Start learning Befunge with a quick overview and Hello World.

Befunge: Syntax

Befunge syntax starter + common patterns.

cats.bend

Bend: Introduction

Start learning Bend with a quick overview and Hello World.

Bend syntax starter + common patterns.

cats.bicep

Bicep: Introduction

Start learning Bicep with a quick overview and Hello World.

Bicep syntax starter + common patterns.

cats.bison

Bison: Introduction

Start learning Bison with a quick overview and Hello World.

Bison syntax starter + common patterns.

cats.bitbake

BitBake: Introduction

Start learning BitBake with a quick overview and Hello World.

BitBake: Syntax

BitBake syntax starter + common patterns.

cats.blitzbasic

BlitzBasic: Introduction

Start learning BlitzBasic with a quick overview and Hello World.

BlitzBasic: Syntax

BlitzBasic syntax starter + common patterns.

cats.boo

Boo: Introduction

Start learning Boo with a quick overview and Hello World.

Boo syntax starter + common patterns.

cats.bourne-shell

Bourne shell: Introduction

Start learning Bourne shell with a quick overview and Hello World.

Bourne shell: Syntax

Bourne shell syntax starter + common patterns.

cats.bpf

BPF: Introduction

Start learning BPF with a quick overview and Hello World.

BPF syntax starter + common patterns.

cats.bqn

BQN: Introduction

Start learning BQN with a quick overview and Hello World.

BQN syntax starter + common patterns.

cats.brainfuck

Brainfuck: Introduction

Start learning Brainfuck with a quick overview and Hello World.

Brainfuck: Syntax

Brainfuck syntax starter + common patterns.

cats.c-shell

C Shell: Introduction

Start learning C Shell with a quick overview and Hello World.

C Shell: Syntax

C Shell syntax starter + common patterns.

cats.caddyfile

Caddyfile: Introduction

Start learning Caddyfile with a quick overview and Hello World.

Caddyfile: Syntax

Caddyfile syntax starter + common patterns.

cats.caml

Caml: Introduction

Start learning Caml with a quick overview and Hello World.

Caml syntax starter + common patterns.

cats.capn-proto

Cap'n Proto: Introduction

Start learning Cap'n Proto with a quick overview and Hello World.

Cap'n Proto: Syntax

Cap'n Proto syntax starter + common patterns.

cats.carbon

Carbon: Introduction

Start learning Carbon with a quick overview and Hello World.

Carbon syntax starter + common patterns.

cats.ceylon

Ceylon: Introduction

Start learning Ceylon with a quick overview and Hello World.

Ceylon syntax starter + common patterns.

cats.chapel

Chapel: Introduction

Start learning Chapel with a quick overview and Hello World.

Chapel syntax starter + common patterns.

cats.cil

CIL: Introduction

Start learning CIL with a quick overview and Hello World.

CIL syntax starter + common patterns.

cats.cl

CL: Introduction

Start learning CL with a quick overview and Hello World.

CL syntax starter + common patterns.

cats.clarion

Clarion: Introduction

Start learning Clarion with a quick overview and Hello World.

Clarion: Syntax

Clarion syntax starter + common patterns.

cats.clean

Clean: Introduction

Start learning Clean with a quick overview and Hello World.

Clean syntax starter + common patterns.

cats.clips

CLIPS: Introduction

Start learning CLIPS with a quick overview and Hello World.

CLIPS syntax starter + common patterns.

cats.clojure

Clojure: Introduction

Start learning Clojure with a quick overview and Hello World.

Clojure: Syntax

Clojure syntax starter + common patterns.

cats.cmake

CMake: Introduction

Start learning CMake with a quick overview and Hello World.

CMake syntax starter + common patterns.

cats.cobol

COBOL: Introduction

Start learning COBOL with a quick overview and Hello World.

COBOL syntax starter + common patterns.

cats.coffeescript

CoffeeScript: Introduction

Start learning CoffeeScript with a quick overview and Hello World.

CoffeeScript: Syntax

CoffeeScript syntax starter + common patterns.

cats.coldfusion

ColdFusion: Introduction

Start learning ColdFusion with a quick overview and Hello World.

ColdFusion: Syntax

ColdFusion syntax starter + common patterns.

cats.common-lisp

Common Lisp: Introduction

Start learning Common Lisp with a quick overview and Hello World.

Common Lisp: Syntax

Common Lisp syntax starter + common patterns.

cats.coq

Coq: Introduction

Start learning Coq with a quick overview and Hello World.

Coq syntax starter + common patterns.

cats.crystal

Crystal: Introduction

Start learning Crystal with a quick overview and Hello World.

Crystal: Syntax

Crystal syntax starter + common patterns.

cats.csp

CSP: Introduction

Start learning CSP with a quick overview and Hello World.

CSP syntax starter + common patterns.

cats.cuda

CUDA: Introduction

Start learning CUDA with a quick overview and Hello World.

CUDA syntax starter + common patterns.

cats.cypher

Cypher: Introduction

Start learning Cypher with a quick overview and Hello World.

Cypher syntax starter + common patterns.

cats.d

D: Introduction

Start learning D with a quick overview and Hello World.

D syntax starter + common patterns.

cats.datalog

Datalog: Introduction

Start learning Datalog with a quick overview and Hello World.

Datalog: Syntax

Datalog syntax starter + common patterns.

cats.dcl

DCL: Introduction

Start learning DCL with a quick overview and Hello World.

DCL syntax starter + common patterns.

cats.delphi

Delphi: Introduction

Start learning Delphi with a quick overview and Hello World.

Delphi syntax starter + common patterns.

cats.dhall

Dhall: Introduction

Start learning Dhall with a quick overview and Hello World.

Dhall syntax starter + common patterns.

cats.dtrace

DTrace: Introduction

Start learning DTrace with a quick overview and Hello World.

DTrace syntax starter + common patterns.

cats.e

E: Introduction

Start learning E with a quick overview and Hello World.

E syntax starter + common patterns.

cats.ebnf

EBNF: Introduction

Start learning EBNF with a quick overview and Hello World.

EBNF syntax starter + common patterns.

cats.ecl

ECL: Introduction

Start learning ECL with a quick overview and Hello World.

ECL syntax starter + common patterns.

cats.eiffel

Eiffel: Introduction

Start learning Eiffel with a quick overview and Hello World.

Eiffel syntax starter + common patterns.

cats.ejs

EJS: Introduction

Start learning EJS with a quick overview and Hello World.

EJS syntax starter + common patterns.

cats.elixir

Elixir: Introduction

Start learning Elixir with a quick overview and Hello World.

Elixir syntax starter + common patterns.

cats.elm

Elm: Introduction

Start learning Elm with a quick overview and Hello World.

Elm syntax starter + common patterns.

cats.emacs-lisp

Emacs Lisp: Introduction

Start learning Emacs Lisp with a quick overview and Hello World.

Emacs Lisp: Syntax

Emacs Lisp syntax starter + common patterns.

cats.emberscript

EmberScript: Introduction

Start learning EmberScript with a quick overview and Hello World.

EmberScript: Syntax

EmberScript syntax starter + common patterns.

cats.erb

ERB: Introduction

Start learning ERB with a quick overview and Hello World.

ERB syntax starter + common patterns.

cats.erlang

Erlang: Introduction

Start learning Erlang with a quick overview and Hello World.

Erlang syntax starter + common patterns.

cats.euphoria

Euphoria: Introduction

Start learning Euphoria with a quick overview and Hello World.

Euphoria: Syntax

Euphoria syntax starter + common patterns.

cats.f

F*: Introduction

Start learning F* with a quick overview and Hello World.

F* syntax starter + common patterns.

cats.factor

Factor: Introduction

Start learning Factor with a quick overview and Hello World.

Factor syntax starter + common patterns.

cats.fantom

Fantom: Introduction

Start learning Fantom with a quick overview and Hello World.

Fantom syntax starter + common patterns.

cats.felix

Felix: Introduction

Start learning Felix with a quick overview and Hello World.

Felix syntax starter + common patterns.

cats.fennel

Fennel: Introduction

Start learning Fennel with a quick overview and Hello World.

Fennel syntax starter + common patterns.

cats.fish-shell

Fish shell: Introduction

Start learning Fish shell with a quick overview and Hello World.

Fish shell: Syntax

Fish shell syntax starter + common patterns.

cats.flow

Flow: Introduction

Start learning Flow with a quick overview and Hello World.

Flow syntax starter + common patterns.

cats.forth

Forth: Introduction

Start learning Forth with a quick overview and Hello World.

Forth syntax starter + common patterns.

cats.fortran

Fortran: Introduction

Start learning Fortran with a quick overview and Hello World.

Fortran: Syntax

Fortran syntax starter + common patterns.

cats.frink

Frink: Introduction

Start learning Frink with a quick overview and Hello World.

Frink syntax starter + common patterns.

cats.fsharp

F#: Introduction

Start learning F# with a quick overview and Hello World.

F# syntax starter + common patterns.

cats.g-code

G-Code: Introduction

Start learning G-Code with a quick overview and Hello World.

G-Code syntax starter + common patterns.

cats.gambas

Gambas: Introduction

Start learning Gambas with a quick overview and Hello World.

Gambas syntax starter + common patterns.

cats.gap

GAP: Introduction

Start learning GAP with a quick overview and Hello World.

GAP syntax starter + common patterns.

cats.gdscript

GDScript: Introduction

Start learning GDScript with a quick overview and Hello World.

GDScript: Syntax

GDScript syntax starter + common patterns.

cats.genie

Genie: Introduction

Start learning Genie with a quick overview and Hello World.

Genie syntax starter + common patterns.

cats.gherkin

Gherkin: Introduction

Start learning Gherkin with a quick overview and Hello World.

Gherkin: Syntax

Gherkin syntax starter + common patterns.

cats.gleam

Gleam: Introduction

Start learning Gleam with a quick overview and Hello World.

Gleam syntax starter + common patterns.

cats.glsl

GLSL: Introduction

Start learning GLSL with a quick overview and Hello World.

GLSL syntax starter + common patterns.

cats.gml

GML: Introduction

Start learning GML with a quick overview and Hello World.

GML syntax starter + common patterns.

cats.gnuplot

Gnuplot: Introduction

Start learning Gnuplot with a quick overview and Hello World.

Gnuplot: Syntax

Gnuplot syntax starter + common patterns.

cats.gosu

Gosu: Introduction

Start learning Gosu with a quick overview and Hello World.

Gosu syntax starter + common patterns.

cats.graphql

GraphQL: Introduction

Start learning GraphQL with a quick overview and Hello World.

GraphQL: Syntax

GraphQL syntax starter + common patterns.

cats.groovy

Groovy: Introduction

Start learning Groovy with a quick overview and Hello World.

Groovy syntax starter + common patterns.

cats.hack

Hack: Introduction

Start learning Hack with a quick overview and Hello World.

Hack syntax starter + common patterns.

cats.harbour

Harbour: Introduction

Start learning Harbour with a quick overview and Hello World.

Harbour: Syntax

Harbour syntax starter + common patterns.

cats.haskell

Haskell: Introduction

Start learning Haskell with a quick overview and Hello World.

Haskell: Syntax

Haskell syntax starter + common patterns.

cats.haxe

Haxe: Introduction

Start learning Haxe with a quick overview and Hello World.

Haxe syntax starter + common patterns.

cats.hcl

HCL: Introduction

Start learning HCL with a quick overview and Hello World.

HCL syntax starter + common patterns.

cats.hlsl

HLSL: Introduction

Start learning HLSL with a quick overview and Hello World.

HLSL syntax starter + common patterns.

cats.hy

Hy: Introduction

Start learning Hy with a quick overview and Hello World.

Hy syntax starter + common patterns.

cats.icon

ICON: Introduction

Start learning ICON with a quick overview and Hello World.

ICON syntax starter + common patterns.

cats.idris

Idris: Introduction

Start learning Idris with a quick overview and Hello World.

Idris syntax starter + common patterns.

cats.inform

Inform: Introduction

Start learning Inform with a quick overview and Hello World.

Inform syntax starter + common patterns.

cats.io

Io: Introduction

Start learning Io with a quick overview and Hello World.

Io syntax starter + common patterns.

cats.j

J: Introduction

Start learning J with a quick overview and Hello World.

J syntax starter + common patterns.

cats.janet

Janet: Introduction

Start learning Janet with a quick overview and Hello World.

Janet syntax starter + common patterns.

cats.javascript

JavaScript: Introduction

Start learning JavaScript with a quick overview and Hello World.

JavaScript: Syntax

JavaScript syntax starter + common patterns.

cats.jcl

JCL: Introduction

Start learning JCL with a quick overview and Hello World.

JCL syntax starter + common patterns.

cats.jinja

Jinja: Introduction

Start learning Jinja with a quick overview and Hello World.

Jinja syntax starter + common patterns.

cats.jmespath

JMESPath: Introduction

Start learning JMESPath with a quick overview and Hello World.

JMESPath: Syntax

JMESPath syntax starter + common patterns.

cats.jq

JQ: Introduction

Start learning JQ with a quick overview and Hello World.

JQ syntax starter + common patterns.

cats.jscript

JScript: Introduction

Start learning JScript with a quick overview and Hello World.

JScript: Syntax

JScript syntax starter + common patterns.

cats.jsonata

JSONata: Introduction

Start learning JSONata with a quick overview and Hello World.

JSONata: Syntax

JSONata syntax starter + common patterns.

cats.jsp

JSP: Introduction

Start learning JSP with a quick overview and Hello World.

JSP syntax starter + common patterns.

cats.julia

Julia: Introduction

Start learning Julia with a quick overview and Hello World.

Julia syntax starter + common patterns.

cats.k

K: Introduction

Start learning K with a quick overview and Hello World.

K syntax starter + common patterns.

cats.karel

Karel: Introduction

Start learning Karel with a quick overview and Hello World.

Karel syntax starter + common patterns.

cats.kconfig

Kconfig: Introduction

Start learning Kconfig with a quick overview and Hello World.

Kconfig: Syntax

Kconfig syntax starter + common patterns.

cats.ksql

KSQL: Introduction

Start learning KSQL with a quick overview and Hello World.

KSQL syntax starter + common patterns.

cats.labview-g

LabVIEW G: Introduction

Start learning LabVIEW G with a quick overview and Hello World.

LabVIEW G: Syntax

LabVIEW G syntax starter + common patterns.

cats.labview

LabVIEW: Introduction

Start learning LabVIEW with a quick overview and Hello World.

LabVIEW: Syntax

LabVIEW syntax starter + common patterns.

cats.lean

Lean: Introduction

Start learning Lean with a quick overview and Hello World.

Lean syntax starter + common patterns.

cats.less

Less: Introduction

Start learning Less with a quick overview and Hello World.

Less syntax starter + common patterns.

cats.lex

Lex: Introduction

Start learning Lex with a quick overview and Hello World.

Lex syntax starter + common patterns.

cats.lfe

LFE: Introduction

Start learning LFE with a quick overview and Hello World.

LFE syntax starter + common patterns.

cats.lilypond

LilyPond: Introduction

Start learning LilyPond with a quick overview and Hello World.

LilyPond: Syntax

LilyPond syntax starter + common patterns.

cats.liquid

Liquid: Introduction

Start learning Liquid with a quick overview and Hello World.

Liquid syntax starter + common patterns.

cats.livecode

LiveCode: Introduction

Start learning LiveCode with a quick overview and Hello World.

LiveCode: Syntax

LiveCode syntax starter + common patterns.

cats.livescript

LiveScript: Introduction

Start learning LiveScript with a quick overview and Hello World.

LiveScript: Syntax

LiveScript syntax starter + common patterns.

cats.logo

Logo: Introduction

Start learning Logo with a quick overview and Hello World.

Logo syntax starter + common patterns.

cats.lolcode

LOLCODE: Introduction

Start learning LOLCODE with a quick overview and Hello World.

LOLCODE: Syntax

LOLCODE syntax starter + common patterns.

cats.lua

Lua: Introduction

Start learning Lua with a quick overview and Hello World.

Lua syntax starter + common patterns.

cats.m

M: Introduction

Start learning M with a quick overview and Hello World.

M syntax starter + common patterns.

cats.m4

M4: Introduction

Start learning M4 with a quick overview and Hello World.

M4 syntax starter + common patterns.

cats.make

Make: Introduction

Start learning Make with a quick overview and Hello World.

Make syntax starter + common patterns.

cats.mako

Mako: Introduction

Start learning Mako with a quick overview and Hello World.

Mako syntax starter + common patterns.

cats.maple

Maple: Introduction

Start learning Maple with a quick overview and Hello World.

Maple syntax starter + common patterns.

cats.matlab

MATLAB: Introduction

Start learning MATLAB with a quick overview and Hello World.

MATLAB syntax starter + common patterns.

cats.max

Max: Introduction

Start learning Max with a quick overview and Hello World.

Max syntax starter + common patterns.

cats.mercury

Mercury: Introduction

Start learning Mercury with a quick overview and Hello World.

Mercury: Syntax

Mercury syntax starter + common patterns.

cats.meson

Meson: Introduction

Start learning Meson with a quick overview and Hello World.

Meson syntax starter + common patterns.

cats.minizinc

MiniZinc: Introduction

Start learning MiniZinc with a quick overview and Hello World.

MiniZinc: Syntax

MiniZinc syntax starter + common patterns.

cats.modelica

Modelica: Introduction

Start learning Modelica with a quick overview and Hello World.

Modelica: Syntax

Modelica syntax starter + common patterns.

cats.modula-2

Modula-2: Introduction

Start learning Modula-2 with a quick overview and Hello World.

Modula-2: Syntax

Modula-2 syntax starter + common patterns.

cats.modula-3

Modula-3: Introduction

Start learning Modula-3 with a quick overview and Hello World.

Modula-3: Syntax

Modula-3 syntax starter + common patterns.

cats.monkey

Monkey: Introduction

Start learning Monkey with a quick overview and Hello World.

Monkey syntax starter + common patterns.

cats.moonscript

MoonScript: Introduction

Start learning MoonScript with a quick overview and Hello World.

MoonScript: Syntax

MoonScript syntax starter + common patterns.

cats.mql4

MQL4: Introduction

Start learning MQL4 with a quick overview and Hello World.

MQL4 syntax starter + common patterns.

cats.mql5

MQL5: Introduction

Start learning MQL5 with a quick overview and Hello World.

MQL5 syntax starter + common patterns.

cats.mumps

MUMPS: Introduction

Start learning MUMPS with a quick overview and Hello World.

MUMPS syntax starter + common patterns.

cats.mustache

Mustache: Introduction

Start learning Mustache with a quick overview and Hello World.

Mustache: Syntax

Mustache syntax starter + common patterns.

cats.natural

NATURAL: Introduction

Start learning NATURAL with a quick overview and Hello World.

NATURAL: Syntax

NATURAL syntax starter + common patterns.

cats.neko

Neko: Introduction

Start learning Neko with a quick overview and Hello World.

Neko syntax starter + common patterns.

cats.newtonscript

NewtonScript: Introduction

Start learning NewtonScript with a quick overview and Hello World.

NewtonScript: Syntax

NewtonScript syntax starter + common patterns.

cats.nim

Nim: Introduction

Start learning Nim with a quick overview and Hello World.

Nim syntax starter + common patterns.

cats.nix

Nix: Introduction

Start learning Nix with a quick overview and Hello World.

Nix syntax starter + common patterns.

cats.nu

Nu: Introduction

Start learning Nu with a quick overview and Hello World.

Nu syntax starter + common patterns.

cats.nunjucks

Nunjucks: Introduction

Start learning Nunjucks with a quick overview and Hello World.

Nunjucks: Syntax

Nunjucks syntax starter + common patterns.

cats.oberon

Oberon: Introduction

Start learning Oberon with a quick overview and Hello World.

Oberon syntax starter + common patterns.

cats.objectivec

Objective-C: Introduction

Start learning Objective-C with a quick overview and Hello World.

Objective-C: Syntax

Objective-C syntax starter + common patterns.

cats.ocaml

OCaml: Introduction

Start learning OCaml with a quick overview and Hello World.

OCaml syntax starter + common patterns.

cats.openapi

OpenAPI: Introduction

Start learning OpenAPI with a quick overview and Hello World.

OpenAPI: Syntax

OpenAPI syntax starter + common patterns.

cats.opencl

OpenCL: Introduction

Start learning OpenCL with a quick overview and Hello World.

OpenCL syntax starter + common patterns.

cats.openedge-abl

OpenEdge ABL: Introduction

Start learning OpenEdge ABL with a quick overview and Hello World.

OpenEdge ABL: Syntax

OpenEdge ABL syntax starter + common patterns.

cats.openscad

OpenSCAD: Introduction

Start learning OpenSCAD with a quick overview and Hello World.

OpenSCAD: Syntax

OpenSCAD syntax starter + common patterns.

cats.pascal

Pascal: Introduction

Start learning Pascal with a quick overview and Hello World.

Pascal syntax starter + common patterns.

cats.pddl

PDDL: Introduction

Start learning PDDL with a quick overview and Hello World.

PDDL syntax starter + common patterns.

cats.perl

Perl: Introduction

Start learning Perl with a quick overview and Hello World.

Perl syntax starter + common patterns.

PHP

PHP: Introduction

Start learning PHP with a quick overview and Hello World.

PHP: PHP Introduction

Learn PHP Introduction in PHP with practical examples.

PHP syntax starter + common patterns.

Learn Variables in PHP with practical examples.

Learn Arrays in PHP with practical examples.

Learn Forms in PHP with practical examples.

Learn Sessions in PHP with practical examples.

PHP: PDO Basics

Learn PDO Basics in PHP with practical examples.

Learn CRUD in PHP with practical examples.

PHP: Security Basics

Learn Security Basics in PHP with practical examples.

Learn APIs in PHP with practical examples.

Learn Composer in PHP with practical examples.

cats.pike

Pike: Introduction

Start learning Pike with a quick overview and Hello World.

Pike syntax starter + common patterns.

cats.pl-sql

PL/SQL: Introduction

Start learning PL/SQL with a quick overview and Hello World.

PL/SQL syntax starter + common patterns.

cats.plantuml

PlantUML: Introduction

Start learning PlantUML with a quick overview and Hello World.

PlantUML: Syntax

PlantUML syntax starter + common patterns.

cats.pony

Pony: Introduction

Start learning Pony with a quick overview and Hello World.

Pony syntax starter + common patterns.

cats.postscript

PostScript: Introduction

Start learning PostScript with a quick overview and Hello World.

PostScript: Syntax

PostScript syntax starter + common patterns.

cats.powershell

PowerShell: Introduction

Start learning PowerShell with a quick overview and Hello World.

PowerShell: Syntax

PowerShell syntax starter + common patterns.

cats.processing

Processing: Introduction

Start learning Processing with a quick overview and Hello World.

Processing: Syntax

Processing syntax starter + common patterns.

cats.prolog

Prolog: Introduction

Start learning Prolog with a quick overview and Hello World.

Prolog syntax starter + common patterns.

cats.protocol-buffers

PROTOCOL-BUFFERS

Protocol Buffers: Introduction

Start learning Protocol Buffers with a quick overview and Hello World.

PROTOCOL-BUFFERS

Protocol Buffers: Syntax

Protocol Buffers syntax starter + common patterns.

cats.pug

Pug: Introduction

Start learning Pug with a quick overview and Hello World.

Pug syntax starter + common patterns.

cats.purescript

PureScript: Introduction

Start learning PureScript with a quick overview and Hello World.

PureScript: Syntax

PureScript syntax starter + common patterns.

Python

Python: Introduction

Start learning Python with a quick overview and Hello World.

PYTHON: Python Introduction

Learn Python Introduction in PYTHON with practical examples.

Python syntax starter + common patterns.

PYTHON: Variables

Learn Variables in PYTHON with practical examples.

PYTHON: Strings

Learn Strings in PYTHON with practical examples.

Learn Lists in PYTHON with practical examples.

PYTHON: Dictionaries

Learn Dictionaries in PYTHON with practical examples.

Learn Loops in PYTHON with practical examples.

PYTHON: Functions

Learn Functions in PYTHON with practical examples.

Learn Files in PYTHON with practical examples.

PYTHON: Exceptions

Learn Exceptions in PYTHON with practical examples.

PYTHON: Classes

Learn Classes in PYTHON with practical examples.

cats.q

Q: Introduction

Start learning Q with a quick overview and Hello World.

Q syntax starter + common patterns.

cats.qb64

QB64: Introduction

Start learning QB64 with a quick overview and Hello World.

QB64 syntax starter + common patterns.

cats.qbasic

QBasic: Introduction

Start learning QBasic with a quick overview and Hello World.

QBasic syntax starter + common patterns.

cats.qiskit

Qiskit: Introduction

Start learning Qiskit with a quick overview and Hello World.

Qiskit syntax starter + common patterns.

cats.qml

QML: Introduction

Start learning QML with a quick overview and Hello World.

QML syntax starter + common patterns.

cats.qsharp

Q#: Introduction

Start learning Q# with a quick overview and Hello World.

Q# syntax starter + common patterns.

cats.quakec

QuakeC: Introduction

Start learning QuakeC with a quick overview and Hello World.

QuakeC syntax starter + common patterns.

R

R: Introduction

Start learning R with a quick overview and Hello World.

R: R Introduction

Learn R Introduction in R with practical examples.

R syntax starter + common patterns.

Learn Vectors in R with practical examples.

Learn Data Frames in R with practical examples.

R: Reading Data

Learn Reading Data in R with practical examples.

R: dplyr Basics

Learn dplyr Basics in R with practical examples.

R: ggplot2 Basics

Learn ggplot2 Basics in R with practical examples.

Learn Statistics in R with practical examples.

Learn Modeling in R with practical examples.

Learn Time Series in R with practical examples.

Learn Shiny Intro in R with practical examples.

cats.racket

Racket: Introduction

Start learning Racket with a quick overview and Hello World.

Racket syntax starter + common patterns.

cats.raku

Raku: Introduction

Start learning Raku with a quick overview and Hello World.

Raku syntax starter + common patterns.

cats.razor

Razor: Introduction

Start learning Razor with a quick overview and Hello World.

Razor syntax starter + common patterns.

cats.reasonml

ReasonML: Introduction

Start learning ReasonML with a quick overview and Hello World.

ReasonML: Syntax

ReasonML syntax starter + common patterns.

cats.red

Red: Introduction

Start learning Red with a quick overview and Hello World.

Red syntax starter + common patterns.

cats.rego

Rego: Introduction

Start learning Rego with a quick overview and Hello World.

Rego syntax starter + common patterns.

cats.renpy

Ren'Py: Introduction

Start learning Ren'Py with a quick overview and Hello World.

Ren'Py syntax starter + common patterns.

cats.rexx

Rexx: Introduction

Start learning Rexx with a quick overview and Hello World.

Rexx syntax starter + common patterns.

cats.ring

Ring: Introduction

Start learning Ring with a quick overview and Hello World.

Ring syntax starter + common patterns.

cats.rmarkdown

RMarkdown: Introduction

Start learning RMarkdown with a quick overview and Hello World.

RMarkdown: Syntax

RMarkdown syntax starter + common patterns.

cats.robot-framework

ROBOT-FRAMEWORK

Robot Framework: Introduction

Start learning Robot Framework with a quick overview and Hello World.

ROBOT-FRAMEWORK

Robot Framework: Syntax

Robot Framework syntax starter + common patterns.

cats.rpg

RPG: Introduction

Start learning RPG with a quick overview and Hello World.

RPG syntax starter + common patterns.

cats.rpgle

RPGLE: Introduction

Start learning RPGLE with a quick overview and Hello World.

RPGLE syntax starter + common patterns.

Ruby

Ruby: Introduction

Start learning Ruby with a quick overview and Hello World.

RUBY: Ruby Introduction

Learn Ruby Introduction in RUBY with practical examples.

Ruby syntax starter + common patterns.

RUBY: Variables

Learn Variables in RUBY with practical examples.

Learn Methods in RUBY with practical examples.

Learn Blocks in RUBY with practical examples.

Learn Classes in RUBY with practical examples.

Learn Modules in RUBY with practical examples.

Learn Gems in RUBY with practical examples.

Learn Bundler in RUBY with practical examples.

RUBY: Rails Intro

Learn Rails Intro in RUBY with practical examples.

RUBY: ActiveRecord

Learn ActiveRecord in RUBY with practical examples.

Rust

Rust: Introduction

Start learning Rust with a quick overview and Hello World.

RUST: Rust Introduction

Learn Rust Introduction in RUST with practical examples.

Rust syntax starter + common patterns.

RUST: Ownership

Learn Ownership in RUST with practical examples.

RUST: Borrowing

Learn Borrowing in RUST with practical examples.

RUST: Lifetimes

Learn Lifetimes in RUST with practical examples.

RUST: Structs & Enums

Learn Structs & Enums in RUST with practical examples.

RUST: Structs & Enums

Learn Structs & Enums in RUST with short examples.

Learn Traits in RUST with practical examples.

RUST: Collections

Learn Collections in RUST with practical examples.

RUST: Error Handling

Learn Error Handling in RUST with practical examples.

Learn Modules in RUST with practical examples.

cats.s

S: Introduction

Start learning S with a quick overview and Hello World.

S syntax starter + common patterns.

cats.s-lang

S-Lang: Introduction

Start learning S-Lang with a quick overview and Hello World.

S-Lang syntax starter + common patterns.

cats.s-plus

S-PLUS: Introduction

Start learning S-PLUS with a quick overview and Hello World.

S-PLUS syntax starter + common patterns.

cats.sas

SAS: Introduction

Start learning SAS with a quick overview and Hello World.

SAS syntax starter + common patterns.

cats.sass

Sass: Introduction

Start learning Sass with a quick overview and Hello World.

Sass syntax starter + common patterns.

cats.scala

Scala: Introduction

Start learning Scala with a quick overview and Hello World.

Scala syntax starter + common patterns.

cats.scaladotjs

Scala.js: Introduction

Start learning Scala.js with a quick overview and Hello World.

Scala.js: Syntax

Scala.js syntax starter + common patterns.

cats.scheme

Scheme: Introduction

Start learning Scheme with a quick overview and Hello World.

Scheme syntax starter + common patterns.

cats.scons

SCons: Introduction

Start learning SCons with a quick overview and Hello World.

SCons syntax starter + common patterns.

cats.scratch

Scratch: Introduction

Start learning Scratch with a quick overview and Hello World.

Scratch: Syntax

Scratch syntax starter + common patterns.

cats.sed

Sed: Introduction

Start learning Sed with a quick overview and Hello World.

Sed syntax starter + common patterns.

cats.seed7

Seed7: Introduction

Start learning Seed7 with a quick overview and Hello World.

Seed7 syntax starter + common patterns.

cats.self

Self: Introduction

Start learning Self with a quick overview and Hello World.

Self syntax starter + common patterns.

cats.shell

Shell: Introduction

Start learning Shell with a quick overview and Hello World.

Shell syntax starter + common patterns.

cats.shen

Shen: Introduction

Start learning Shen with a quick overview and Hello World.

Shen syntax starter + common patterns.

cats.simula

Simula: Introduction

Start learning Simula with a quick overview and Hello World.

Simula syntax starter + common patterns.

cats.skill

SKILL: Introduction

Start learning SKILL with a quick overview and Hello World.

SKILL syntax starter + common patterns.

cats.smali

Smali: Introduction

Start learning Smali with a quick overview and Hello World.

Smali syntax starter + common patterns.

cats.small-basic

Small Basic: Introduction

Start learning Small Basic with a quick overview and Hello World.

Small Basic: Syntax

Small Basic syntax starter + common patterns.

cats.smalltalk

Smalltalk: Introduction

Start learning Smalltalk with a quick overview and Hello World.

Smalltalk: Syntax

Smalltalk syntax starter + common patterns.

cats.solidity

Solidity: Introduction

Start learning Solidity with a quick overview and Hello World.

Solidity: Syntax

Solidity syntax starter + common patterns.

cats.sparql

SPARQL: Introduction

Start learning SPARQL with a quick overview and Hello World.

SPARQL syntax starter + common patterns.

cats.spss

SPSS: Introduction

Start learning SPSS with a quick overview and Hello World.

SPSS syntax starter + common patterns.

SQL

SQL: Introduction

Start learning SQL with a quick overview and Hello World.

SQL: SQL Introduction

Learn SQL Introduction in SQL with practical examples.

SQL syntax starter + common patterns.

Learn SELECT in SQL with practical examples.

Learn WHERE in SQL with practical examples.

Learn ORDER BY in SQL with practical examples.

Learn JOIN in SQL with practical examples.

Learn GROUP BY in SQL with practical examples.

Learn HAVING in SQL with practical examples.

Learn INSERT in SQL with practical examples.

Learn UPDATE in SQL with practical examples.

Learn DELETE in SQL with practical examples.

cats.sql-server-t-sql

SQL-SERVER-T-SQL

SQL Server T-SQL: Introduction

Start learning SQL Server T-SQL with a quick overview and Hello World.

SQL-SERVER-T-SQL

SQL Server T-SQL: Syntax

SQL Server T-SQL syntax starter + common patterns.

cats.squirrel

Squirrel: Introduction

Start learning Squirrel with a quick overview and Hello World.

Squirrel: Syntax

Squirrel syntax starter + common patterns.

cats.stan

Stan: Introduction

Start learning Stan with a quick overview and Hello World.

Stan syntax starter + common patterns.

cats.standard-ml

Standard ML: Introduction

Start learning Standard ML with a quick overview and Hello World.

Standard ML: Syntax

Standard ML syntax starter + common patterns.

cats.starlark

Starlark: Introduction

Start learning Starlark with a quick overview and Hello World.

Starlark: Syntax

Starlark syntax starter + common patterns.

cats.stata

Stata: Introduction

Start learning Stata with a quick overview and Hello World.

Stata syntax starter + common patterns.

cats.supercollider

SuperCollider: Introduction

Start learning SuperCollider with a quick overview and Hello World.

SuperCollider: Syntax

SuperCollider syntax starter + common patterns.

Swift

Swift: Introduction

Start learning Swift with a quick overview and Hello World.

SWIFT: Swift Introduction

Learn Swift Introduction in SWIFT with practical examples.

Swift syntax starter + common patterns.

SWIFT: Variables

Learn Variables in SWIFT with practical examples.

SWIFT: Optionals

Learn Optionals in SWIFT with practical examples.

SWIFT: Functions

Learn Functions in SWIFT with practical examples.

SWIFT: Structs vs Classes

Learn Structs vs Classes in SWIFT with practical examples.

SWIFT: Protocols

Learn Protocols in SWIFT with practical examples.

SWIFT: Generics

Learn Generics in SWIFT with practical examples.

SWIFT: Closures

Learn Closures in SWIFT with practical examples.

SWIFT: Error Handling

Learn Error Handling in SWIFT with practical examples.

SWIFT: Concurrency

Learn Concurrency in SWIFT with practical examples.

cats.systemverilog

SystemVerilog: Introduction

Start learning SystemVerilog with a quick overview and Hello World.

SystemVerilog: Syntax

SystemVerilog syntax starter + common patterns.

cats.tcl

Tcl: Introduction

Start learning Tcl with a quick overview and Hello World.

Tcl syntax starter + common patterns.

cats.terraform

Terraform: Introduction

Start learning Terraform with a quick overview and Hello World.

Terraform: Syntax

Terraform syntax starter + common patterns.

cats.tex

TeX: Introduction

Start learning TeX with a quick overview and Hello World.

TeX syntax starter + common patterns.

cats.thrift

Thrift: Introduction

Start learning Thrift with a quick overview and Hello World.

Thrift syntax starter + common patterns.

cats.toml

TOML: Introduction

Start learning TOML with a quick overview and Hello World.

TOML syntax starter + common patterns.

cats.tsql

TSQL: Introduction

Start learning TSQL with a quick overview and Hello World.

TSQL syntax starter + common patterns.

cats.turing

Turing: Introduction

Start learning Turing with a quick overview and Hello World.

Turing syntax starter + common patterns.

cats.typescript

TypeScript: Introduction

Start learning TypeScript with a quick overview and Hello World.

TypeScript: Syntax

TypeScript syntax starter + common patterns.

cats.unrealscript

UnrealScript: Introduction

Start learning UnrealScript with a quick overview and Hello World.

UnrealScript: Syntax

UnrealScript syntax starter + common patterns.

cats.v

V: Introduction

Start learning V with a quick overview and Hello World.

V syntax starter + common patterns.

cats.vala

Vala: Introduction

Start learning Vala with a quick overview and Hello World.

Vala syntax starter + common patterns.

cats.vba

VBA: Introduction

Start learning VBA with a quick overview and Hello World.

VBA syntax starter + common patterns.

cats.vbscript

VBScript: Introduction

Start learning VBScript with a quick overview and Hello World.

VBScript: Syntax

VBScript syntax starter + common patterns.

cats.verilog

Verilog: Introduction

Start learning Verilog with a quick overview and Hello World.

Verilog: Syntax

Verilog syntax starter + common patterns.

cats.vhdl

VHDL: Introduction

Start learning VHDL with a quick overview and Hello World.

VHDL syntax starter + common patterns.

cats.vim-script

Vim script: Introduction

Start learning Vim script with a quick overview and Hello World.

Vim script: Syntax

Vim script syntax starter + common patterns.

cats.vim9script

Vim9script: Introduction

Start learning Vim9script with a quick overview and Hello World.

Vim9script: Syntax

Vim9script syntax starter + common patterns.

cats.visual-basic

Visual Basic: Introduction

Start learning Visual Basic with a quick overview and Hello World.

Visual Basic: Syntax

Visual Basic syntax starter + common patterns.

cats.vtl

VTL: Introduction

Start learning VTL with a quick overview and Hello World.

VTL syntax starter + common patterns.

cats.vyper

Vyper: Introduction

Start learning Vyper with a quick overview and Hello World.

Vyper syntax starter + common patterns.

cats.webassembly

WebAssembly: Introduction

Start learning WebAssembly with a quick overview and Hello World.

WebAssembly: Syntax

WebAssembly syntax starter + common patterns.

cats.wolfram-language

WOLFRAM-LANGUAGE

Wolfram Language: Introduction

Start learning Wolfram Language with a quick overview and Hello World.

WOLFRAM-LANGUAGE

Wolfram Language: Syntax

Wolfram Language syntax starter + common patterns.

cats.x10

X10: Introduction

Start learning X10 with a quick overview and Hello World.

X10 syntax starter + common patterns.

cats.xojo

Xojo: Introduction

Start learning Xojo with a quick overview and Hello World.

Xojo syntax starter + common patterns.

cats.xquery

XQuery: Introduction

Start learning XQuery with a quick overview and Hello World.

XQuery syntax starter + common patterns.

cats.xslt

XSLT: Introduction

Start learning XSLT with a quick overview and Hello World.

XSLT syntax starter + common patterns.

cats.xtend

Xtend: Introduction

Start learning Xtend with a quick overview and Hello World.

Xtend syntax starter + common patterns.

cats.yacc

Yacc: Introduction

Start learning Yacc with a quick overview and Hello World.

Yacc syntax starter + common patterns.

cats.yaml

YAML: Introduction

Start learning YAML with a quick overview and Hello World.

YAML syntax starter + common patterns.

cats.yorick

Yorick: Introduction

Start learning Yorick with a quick overview and Hello World.

Yorick syntax starter + common patterns.

cats.yul

Yul: Introduction

Start learning Yul with a quick overview and Hello World.

Yul syntax starter + common patterns.

cats.zeno

Zeno: Introduction

Start learning Zeno with a quick overview and Hello World.

Zeno syntax starter + common patterns.

cats.zig

Zig: Introduction

Start learning Zig with a quick overview and Hello World.

Zig syntax starter + common patterns.

cats.zimbu

Zimbu: Introduction

Start learning Zimbu with a quick overview and Hello World.

Zimbu syntax starter + common patterns.

cats.zonnon

Zonnon: Introduction

Start learning Zonnon with a quick overview and Hello World.

Zonnon syntax starter + common patterns.

cats.zpl

ZPL: Introduction

Start learning ZPL with a quick overview and Hello World.

ZPL syntax starter + common patterns.

cats.zsh

Zsh: Introduction

Start learning Zsh with a quick overview and Hello World.

Zsh syntax starter + common patterns.

MongoDB

MONGODB: MongoDB Introduction

Learn MongoDB Introduction in MONGODB with practical examples.

Learn CRUD in MONGODB with practical examples.

MONGODB: Query Operators

Learn Query Operators in MONGODB with practical examples.

MONGODB: Indexes

Learn Indexes in MONGODB with practical examples.

MONGODB: Aggregation Pipeline

Learn Aggregation Pipeline in MONGODB with practical examples.

MONGODB: Schema Design

Learn Schema Design in MONGODB with practical examples.

MONGODB: Transactions

Learn Transactions in MONGODB with practical examples.

MONGODB: Replication

Learn Replication in MONGODB with practical examples.

MONGODB: Atlas Basics

Learn Atlas Basics in MONGODB with practical examples.

MONGODB: Security

Learn Security in MONGODB with practical examples.

MySQL

MYSQL: MySQL Introduction

Learn MySQL Introduction in MYSQL with practical examples.

Learn SELECT in MYSQL with practical examples.

Learn WHERE in MYSQL with practical examples.

Learn JOIN in MYSQL with practical examples.

MYSQL: GROUP BY

Learn GROUP BY in MYSQL with practical examples.

Learn Indexes in MYSQL with practical examples.

MYSQL: Normalization

Learn Normalization in MYSQL with practical examples.

MYSQL: Transactions

Learn Transactions in MYSQL with practical examples.

MYSQL: Stored Procedures

Learn Stored Procedures in MYSQL with practical examples.

Learn Views in MYSQL with practical examples.

Next.js

NEXTJS: Next.js Introduction

Learn Next.js Introduction in NEXTJS with practical examples.

NEXTJS: Routing

Learn Routing in NEXTJS with practical examples.

NEXTJS: App Router

Learn App Router in NEXTJS with practical examples.

NEXTJS: Pages Router

Learn Pages Router in NEXTJS with practical examples.

NEXTJS: Data Fetching

Learn Data Fetching in NEXTJS with practical examples.

NEXTJS: SSR vs SSG

Learn SSR vs SSG in NEXTJS with practical examples.

NEXTJS: API Routes

Learn API Routes in NEXTJS with practical examples.

NEXTJS: Middleware

Learn Middleware in NEXTJS with practical examples.

Learn SEO in NEXTJS with practical examples.

NEXTJS: Image Optimization

Learn Image Optimization in NEXTJS with practical examples.

Node.js

NODE: Node.js Introduction

Learn Node.js Introduction in NODE with practical examples.

Learn NPM in NODE with practical examples.

NODE: ESM Modules

Learn ESM Modules in NODE with practical examples.

NODE: HTTP Server

Learn HTTP Server in NODE with practical examples.

NODE: Express Basics

Learn Express Basics in NODE with practical examples.

Learn Routing in NODE with practical examples.

NODE: Middleware

Learn Middleware in NODE with practical examples.

NODE: Static Files

Learn Static Files in NODE with practical examples.

NODE: Environment Variables

Learn Environment Variables in NODE with practical examples.

NODE: REST APIs

Learn REST APIs in NODE with practical examples.

NODE: Security Basics

Learn Security Basics in NODE with practical examples.

NODE: Rate Limit

Learn Rate Limit in NODE with practical examples.

React

REACT: React Introduction

Learn React Introduction in REACT with practical examples.

Learn JSX in REACT with practical examples.

REACT: Components

Learn Components in REACT with practical examples.

Learn Props in REACT with practical examples.

Learn State in REACT with practical examples.

REACT: useEffect

Learn useEffect in REACT with practical examples.

Learn Forms in REACT with practical examples.

REACT: React Router

Learn React Router in REACT with practical examples.

REACT: Performance

Learn Performance in REACT with practical examples.

REACT: Deployment

Learn Deployment in REACT with practical examples.

Svelte

SVELTE: Svelte Introduction

Learn Svelte Introduction in SVELTE with practical examples.

SVELTE: Components

Learn Components in SVELTE with practical examples.

SVELTE: Reactivity

Learn Reactivity in SVELTE with practical examples.

Learn Props in SVELTE with practical examples.

Learn Stores in SVELTE with practical examples.

Learn Events in SVELTE with practical examples.

Learn Forms in SVELTE with practical examples.

SVELTE: Animations

Learn Animations in SVELTE with practical examples.

SVELTE: Lifecycle

Learn Lifecycle in SVELTE with practical examples.

SVELTE: Build & Deploy

Learn Build & Deploy in SVELTE with practical examples.

SVELTE: Build & Deploy

Learn Build & Deploy in SVELTE with short examples.

Tailwind CSS

TAILWIND: Tailwind Basics

Learn Tailwind Basics in TAILWIND with practical examples.

TAILWIND: Setup

Learn Setup in TAILWIND with practical examples.

TAILWIND: Utility Classes

Learn Utility Classes in TAILWIND with practical examples.

TAILWIND: Responsive Design

Learn Responsive Design in TAILWIND with practical examples.

TAILWIND: Flex & Grid

Learn Flex & Grid in TAILWIND with practical examples.

TAILWIND: Flex & Grid

Learn Flex & Grid in TAILWIND with short examples.

TAILWIND: Typography

Learn Typography in TAILWIND with practical examples.

TAILWIND: Colors

Learn Colors in TAILWIND with practical examples.

TAILWIND: Components

Learn Components in TAILWIND with practical examples.

TAILWIND: Dark Mode

Learn Dark Mode in TAILWIND with practical examples.

TypeScript

TS: TypeScript Basics

Learn TypeScript Basics in TS with practical examples.

Learn Types in TS with practical examples.

Learn Interfaces in TS with practical examples.

Learn Functions in TS with practical examples.

Learn Generics in TS with practical examples.

Learn Enums in TS with practical examples.

Learn Classes in TS with practical examples.

TS: Union Types

Learn Union Types in TS with practical examples.

TS: Type Narrowing

Learn Type Narrowing in TS with practical examples.

Learn Modules in TS with practical examples.

Vue.js

VUE: Vue Introduction

Learn Vue Introduction in VUE with practical examples.

Learn Templates in VUE with practical examples.

VUE: Directives

Learn Directives in VUE with practical examples.

VUE: Reactivity

Learn Reactivity in VUE with practical examples.

VUE: Components

Learn Components in VUE with practical examples.

Learn Props in VUE with practical examples.

VUE: Computed & Watch

Learn Computed & Watch in VUE with practical examples.

VUE: Computed & Watch

Learn Computed & Watch in VUE with short examples.

Learn Routing in VUE with practical examples.

VUE: State Management

Learn State Management in VUE with practical examples.

VUE: Composition API

Learn Composition API in VUE with practical examples.