Introduction to JavaScript

Core JavaScript. Lexical structure ; Types, values, and variables ; Expressions and operators ; Statements ; Objects ; Arrays ; Functions ; Classes and modules ; Pattern matching with regular expressions ; JavaScript subsets and extensions ; Server-side JavaScript

Client-side JavaScript. JavaScript in web browsers ; The window object ; Scripting documents ; Scripting CSS ; Handling events ; Scripted HTTP ; The jQuery library ; Client-side storage ; Scripted media and graphics ; HTML5 APIs

Core JavaScript reference

Client-side JavaScript reference.