JavaScript Basics

This page covers the basics of JavaScript, for beginners, in 30 minutes.

Running JavaScript

• How to Run JavaScript

Comment

• JS: Comment

Printing

• JS: Print

String

• JS: Quote String

Number

• JS: Number

Arithmetic

• JS: Math Operators

Assignment

• JS: Assignment Operators

Variables

• JS: let Declaration
• JS: const Declaration

Data Types

• JS: Value Types

True and False

• JS: Boolean: true, false

Logic Operators

• Logic Operators

Number Comparison Operators

• JS: Number Comparison Operators
• JS: Test Equality

If Then Else

• JS: if then else

Iteration; Loop

• JS: for while do Loop

Array

• JS: Array Tutorial

Define Function

• JS: Define Function

JavaScript Object

• JS: Object Tutorial

Semicolon

• JS: Semicolon