kamranahmedse/javascript-roadmap.md

## javascript-roadmap.md

      
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              javascript-roadmap.md
            
          
Textual version of the JavaScript roadmap roadmap.sh/javascript


Introduction to JavaScript

What is JavaScript?
History of JavaScript
JavaScript Versions
How to Run JavaScript


All about Variables

Rules for naming variables
Variable Declarations

var
let
const


Variable Scopes

Block Scope
Global Scope
Function Scope


Hoisting


Data Types

Primitive Types

string
number
bigint
boolean
undefined
symbol
null


Object

Object Prototypes
Prototypal Inheritance
Built-in Objects


typeof operator


Data Structures

Indexed Collections

Arrays
Typed Arrays


Keyed Collections

Map
Weak Map
Set
Weak Set


Structured Data

JSON


Type Casting

Implicit Type Casting
Explicit Type Casting
Type Conversion vs Coercion


Equality comparisons

Equality Algorithms in JavaScript

isLooselyEqual
isStrictlyEqual
SameValueZero
SameValue


Value Comparison Operators

===
==
Object.is


Loops and Iteration

for statement
do...while statement
while statement
break / continue
labeled statements
for...in statement
for...of statement


Control Flow

Conditional Statements

if...else
switch


Exception Handling Statements

throw statement
try / catch / finally statement
Utilizing Error Objects


Expressions and Operators

Assignment Operators
Comparison Operators
Arithmetic Operators
Bitwise Operators
Logical Operators
BigInt Operators
String Operators
Conditional Operators
Comma Operators
Unary Operators
Relational Operators


Functions

Defining Functions
Calling Functions
Function Parameters

Default Parameters
Rest Parameters


Arrow Functions
IIFEs
arguments Object
Scope and Function Stack

Recursion
Lexical Scoping
Closures


JavaScript's Built-in Functions


Strict Mode use strict
this keyword

this in a method
this in a function (default mode)
this alone
this in a function (strict mode)
this in Event Handlers
this in arrow functions
Explicit Function Binding

call method
apply method
bind method


Function Borrowing


Asynchronous JavaScript

setTimeout
setInterval
callbacks / callback hell
Promises
async/await


Event Loop
Classes
Iterators and Generators
modules in javascript

Common JS vs ESM


Memory Management

Memory Lifecycle
Garbage Collection


Debugging

JavaScript Bugs
Performance Issues