REFERENCEjavascript

javascript Documentation

📖 INDEX

# Accesability-Semantic-HTML

# Advanced-CSS

# Anonymous-Functions

# Arguments-Parameters

# Array-Destructuring

# Core-Technologies-Advance-Knowledge

# Elements-Manipulation

# Function-Declaration

# Function-Expressions

# InheritanceJavaScript

# JavaScript-Advance-Functions

# JavaScript-Array-Object

# JavaScript-Arrays-Loops

# JavaScript-Async-Intro

# JavaScript-Async

# JavaScript-Basic-Syntax

# JavaScript-BOM

# JavaScript-Callbacks

# JavaScript-ClientvsServer

# JavaScript-Clousures

# JavaScript-Comments

# JavaScript-Common-Events

# JavaScript-Common-Methods

# JavaScript-Condicionals

# JavaScript-Console

# JavaScript-Control-Structure

# JavaScript-Data-types-Variables

# JavaScript-Dates-Time

# JavaScript-Dates

# JavaScript-Debugging-Tools

# JavaScript-Declaration

# JavaScript-DOM

# JavaScript-Embedded

# JavaScript-Errors-Intro

# JavaScript-Errors

# JavaScript-Event-Listener

# JavaScript-Events

# JavaScript-Export

# JavaScript-Fetch-API

# JavaScript-First-Steps

# JavaScript-Functions

# JavaScript-History

# JavaScript-How-works

# JavaScript-Inheritance

# JavaScript-Intro

# JavaScript-JSON-Works

# JavaScript-JSON

# JavaScript-Localstorage

# JavaScript-Loops

# JavaScript-Manipulation

# JavaScript-Modular

# JavaScript-Modules

# JavaScript-Objects

# JavaScript-Operators

# JavaScript-POO

# JavaScript-Promises

# JavaScript-Propagation

# JavaScript-Prototypes

# JavaScript-Redirects

# JavaScript-Style-Modification

# JavaScript-Window-Location

# Modern-Libreries-Frameworks

# Modification-Methods

# Optimization-and-Build

# Team-Work-and-Communication

# Recursive-Functions

# Prototypes

# Array-Creation

# Selection-Methods-Alias

# Custom-Exceptions-Alias

# async-await

# Scope-and-Context

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JS Logic Operators

Master the flow of your code using boolean logic.

operators.js

⚡

Learning Logic...

Tutor: Logical operators are used to determine the logic between variables or values. The AND (&&) operator returns true if both operands are true.

Skill Tree

The AND (&&) and OR (||)

Use && when you need all conditions to be true. Use || when any condition being true is enough.

Logic Gate Check

What is the result of (true || false)?

truefalseundefinednull

Logical Operators Summary

Logical operators are essential for control flow. They allow your program to make decisions based on multiple criteria.

AND (&&)

Returns true only if both sides are true. Useful for ranges: (age > 18 && age < 65).

OR (||)

Returns true if any side is true. Often used for default values.

NOT (!)

Flips the truthiness. Great for checking if a variable is empty or null.

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