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Home » Array

Array

How to Check if an Array Contains a Value in Javascript

In this tutorial, you’ll learn how to check if an array contains a value in JavaScript.

How to Check If a Variable is an Array in JavaScript

This tutorial shows you how to use the Array.isArray() method and instanceof operator to check if a variable is an array in JavaScript

Remove Duplicates from an Array

In this tutorial, you will learn some techniques to to remove duplicates from an array in JavaScript.

How to Sort an Array of Objects in JavaScript

In this tutorial, you will learn how to sort an array of objects by the values of the object’s properties

4 Ways to Empty an Array in JavaScript

This tutorial shows you various ways to empty an array in JavaScript

Getting Started

  • What is JavaScript
  • Install a JavaScript Code Editor
  • Meet the Console Tab of Devtools
  • JavaScript Hello World

JavaScript Fundamentals

  • Syntax
  • Variables
  • Data Types
  • Number
  • Numeric Separator
  • Boolean
  • String
  • Object
  • Primitive vs. Reference Values
  • Array

JavaScript Operators

  • Arithmetic Operators
  • Remainder Operator
  • Assignment Operators
  • Unary Operators
  • Comparison Operators
  • Logical Operators

Control Flow

  • if
  • if else
  • if else if
  • Ternary Operator (?:)
  • switch case
  • while
  • do while
  • for
  • break
  • continue
  • Comma Operator

JavaScript Functions

  • Functions
  • Functions are First-Class Citizens
  • Anonymous Functions
  • Understanding Pass-By-Value in JavaScript
  • Recursive Functions
  • Default Parameters

JavaScript Objects

  • Object Methods
  • Constructor Functions
  • Prototype
  • Constructor/Prototype Pattern
  • Prototypal Inheritance
  • JavaScript this
  • globalThis
  • Object Properties
  • for…in Loop
  • Enumerable Properties
  • Own Properties
  • Factory Functions
  • Object Destructuring
  • Optional Chaining Operator
  • Object Literal Syntax Extensions

Classes

  • Class
  • Getters & Setters
  • Class Expressions
  • Computed Properties
  • Inheritance
  • new.target
  • Static Methods
  • Static Properties
  • Private Fields
  • Private Methods
  • instanceof Operator

Advanced Functions

  • Function Type
  • The call() Method
  • The apply() method
  • The bind() Method
  • Closures
  • Immediately Invoked Function Expression (IIFE)
  • Returning Multiple Values
  • Arrow Functions
  • Arrow Functions: Do & Don’t
  • Rest Parameters
  • Callback

Promises & Async/Await

  • Promises
  • Promise Chaining
  • Promise.all()
  • Promise.race()
  • Promise.any()
  • Promise.allSettled()
  • Promise.prototype.finally()
  • Promise Error Handling
  • async/await
  • Promise.withResolvers()

JavaScript Modules

  • Modules
  • Dynamic Import
  • Top-level Await Modules

Javascript Error Handling

  • try…catch
  • try…catch…finally
  • Throw an Exception
  • Optional catch Binding

JavaScript Runtime

  • Execution Context
  • Call Stack
  • Event Loop
  • Hoisting
  • Variable Scopes

Primitive Wrapper Types

  • Primitive Wrapper Types
  • Boolean
  • Number
  • BigInt
  • String

More JavaScript Operators

  • Falsy
  • Nullish Coalescing Operator
  • Logical Assignment Operators
  • Exponentiation Operator

About JavaScript Tutorial

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References

  • Array Methods
  • String Methods
  • Regular Expressions
  • JavaScript Snippets

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