JavaScript,JScript,ECMAScript及对应浏览器的版本

相信很多人都和我一样,在用 JavaScript 实现各种 Web 应用的时候,都曾经对其历史渊源和版本变迁好奇过。特别是在不得不面对浏览器兼容问题时,希望能对问题的源头有所了解。

作为对上述困惑所做的一点行动,下面的表格(尽可能地)列举了 JavaScript JScript ECMAScript 及对应浏览器的版本之间的关系。当然这个表格不是完全原创的,主要是合并了以下三个 Wikipedia 文档中的相关表格。希望能够给有兴趣的人带来一点帮助。

1. http://en.wikipedia.org/wiki/ECMAScript

2. http://en.wikipedia.org/wiki/JavaScript

3. http://en.wikipedia.org/wiki/JScript

 

JavaScript

JScript

ECMAScript

Release date

Netscape Navigator

Mozilla Firefox

Internet Explorer

Opera

Safari

Google Chrome

1.0

1.0

 

March 1996

2.0

 

3.0- early versions, August 1996

 

 

 

1.1

2.0

 

August 1996

3.0

 

3.0- later versions, January 1997

 

 

 

1.2

 

 

June 1997

4.0-4.05

 

 

 

 

 

1.3

3.0

ECMA-262 1st edition/

ECMA-262 2nd edition

October 1998

4.06-4.7x

 

4.0 -Oct 1997

 

 

 

1.4

4.0

 

 

Netscape Server

 

 

 

 

 

 

5.0

 

March 1999

 

 

5.0

 

 

 

 

5.1

 

 

 

 

5.01

 

 

 

1.5

5.5

ECMA-262 3rd edition

November 2000

6.0

1.0

5.5-July 2000

6.0-11.0

3.0-5

1.0-10.0.666

 

5.6

ECMA-262 3rd edition

October 2001

 

 

6.0

 

 

 

 

5.7

ECMA-262 3rd edition + ECMA-327 (ES-CP)

November 2006

 

 

7

 

 

 

 

5.8

ECMA-262 3rd edition + ECMA-327 (ES-CP) + JSON (RFC 4627)

March 2009

 

 

8

 

 

 

1.6

 

1.5 + Array extras

+ Array and String generics + E4X

November 2005

 

1.5 (Gecko 1.8)

 

 

 

 

1.7

 

1.6 + Pythonic generators

+ Iterators + let

October 2006

 

2.0(Gecko 1.8.1)

 

 

 

 

1.8

 

1.7 + Generator expressions

+ Expression closures

June 2008

 

3.0(Gecko 1.9)

 

 

 

 

1.8.1

 

1.8 + Native JSON support

+ Minor Updates

 

 

3.5

 

 

 

 

1.8.2

 

1.8.1 + Minor updates

June 22, 2009

 

3.6

 

 

 

 

1.8.5

 

1.8.1 + ECMAScript 5 Compliance

July 27, 2010

 

4

9

 

 

 

2.0 (work in progress)

 

Harmony(work in progress)

 

 

 

 

 

 

 

 

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