JavaScript Tutorials - Herong's Tutorial Examples - 2.33, by Herong Yang
JavaScript History and Versions
This section provides a quick description of JavaScript language specification standards, ECMAScript, JavaScript, LiveScript, JScript, and history of versions.
JavaScript has one specification and several dialects:
Here is a quick summary of JavaScript history and versions of its dialects:
1994 Netscape 1.0 199? Netscape 2.0/JavaScript 1.0 ECMA-262 Edition 1, 1997 1996 IE 3.0/JScript 1.0 ECMA-262 Edition 1, 1997 199? Netscape 3.0/JavaScript 1.1 ECMA-262 Edition 1, 1997 1997 IE 4.0/JScript 3.0 ECMA-262 Edition 1, 1997 199? Netscape 4.0/JavaScript 1.2 ECMA-262 Edition 1, 1997 1999 IE 5.0/JScript 5.0 ECMA-262 Edition 1, 1997 2000 Netscape 6.0/JavaScript 1.5 ECMA-262 Edition 3, 1999 2000 IE 5.5/JScript 5.5 ECMA-262 Edition 3, 1999 2001 IE 6.0/JScript 5.6 ECMA-262 Edition 3, 1999 2002 Netscape 7.0/JavaScript 1.5 ECMA-262 Edition 3, 1999 2004 Firefox 1.0 ECMA-262 Edition 3, 1999 2006 IE 7.0/JScript ? ECMA-262 Edition 3, 1999 2006 Firefox 2.0/JavaScript 1.7 ECMA-262 Edition 3, 1999 2007 Netscape 8.0/JavaScript ? ECMA-262 Edition ? 2008 IE 8.0/JScript ? ECMA-262 Edition ? 200? Firefox 3.0/JavaScript 1.8 ECMA-262 Edition ? 2011 Firefox 4.0/JavaScript 1.8.5 ECMA-262 Edition ? ECMA-262 Edition 9, 2018 ECMA-262 Edition 10, 2019 ECMA-262 Edition 11, 2020 ECMA-262 Edition 12, 2021
The latest version of JavaScript specification is ECMA-262 Edition 12. So we should use it as the main reference to learn JavaScript.
Table of Contents
►ECMAScript Language Specification and JavaScript Dialects
►JavaScript History and Versions
ECMAScript Language Specification
Automatic Semicolon Insertion to End Statements
Data Types, Variables and Expressions
Creating, Accessing, and Manipulating Arrays
Defining and Calling Functions
Web Browser Supporting JavaScript
Server-Side and Client-Side Web Scripting
Defining Your Own Object Types
Inheritance of Properties and Methods through the Prototype Object Chain
'jrunscript' - JavaScript Shell Command from JDK
Using Functions as "Function" Objects
Introduction to Built-in Object Types
W3C's Document Object Model (DOM) Specifications