JS - Basics

This map contains the basic JavaScript concepts needed before working with functions, arrays, DOM, and async code.

Values and Input

• User’s input in JS
• Type conversion in JS
• Math in JS
• Random number in JS

Conditions

• if statement
• Switches in JS
• Ternary operator
• Checked property
• Logical operators
• Strict equality operators

Scope

• Variable scope (作用阈)

Strings

• String methods in JS
• String slicing in JS
• Method chaining

Loops

• While loop
• For loop

Practice

• Number guess game example (猜数字游戏案例)

Related

• JavaScript
• JS - Functions
• JS - Arrays and Functional Methods