JScript
JScript was Microsoft's own proprietary development of a scripting language for web browsers and is based on ECMAScript as a central component. JScript extends JavaScript by additional, originally Microsoft-specific features.
Microsoft Internet Explorer is the only web browser to fully support JScript. The Mozilla or Opera browsers now also implement large parts of these extensions, blurring the line between JScript and JavaScript. It is possible to write script programs that both JScript and JavaScript engines will execute correctly.
JScript is implemented as a so-called Windows Script Engine . This means that it can be used with any program that supports Windows Script, such as Internet Explorer, Active Server Pages and Windows Script Host . This also means that any program that supports Windows Script can use multiple languages: JScript, VBScript , Perl, and others.
A further development based on the .NET Framework is JScript .NET .
Versions
JScript
| version | date | Introduced with | Similar to JavaScript |
|---|---|---|---|
| 1.0 | Aug 1996 | IE 3.0 | 1.0 |
| 2.0 | Jan 1997 | IIS 3.0 | 1.1 |
| 3.0 | Oct 1997 | IE 4.0 | 1.3 |
| 4.0 | VS 6.0 | ||
| 5.0 | March 1999 | IE 5.0 | 1.5 |
| 5.1 | IE 5.01 | 1.5 | |
| 5.5 | Jul 2000 | IE 5.5 | 1.5 |
| 5.6 | Oct 2001 | IE 6.0 | 1.5 |
| 5.7 | Nov 2006 | IE 7.0 | 1.5 |
| 5.8 | March 2009 | IE 8.0 | 1.5 |
| 6.0 | 2009/2010 | IE 8.0 | 1.6 |
| 7.0 | 2010 | IE 8.0 | 1.6 |
| 8.0 | 2010 | IE 8.0 | 1.7 |
| 9.0 | 2011 | IE 9.0 | 1.8.5 |
| 10.0 | 2012 (?) | IE 10.0 (?) | 1.9 (?) |
(Source: MSDN, WebmasterWorld Forum)
JScript .NET
| version | date | Introduced with | Similar to JavaScript |
|---|---|---|---|
| .NET 7.0 | July 11, 2000 | Microsoft .NET Framework 1.0 | ? |
| .NET 7.1 | April 3, 2003 | Microsoft .NET Framework 1.1 | ? |
| .NET 8.0 | Jan 22, 2006 | Microsoft .NET Framework 2.0 | ? |
(Source: MSDN, WebmasterWorld Forum)
JScript files ( filename extension * .js) can be executed by the Windows Based Script Host , either - if the extension has been linked - by double-clicking the script file, or by calling wscript.exe or cscript.exe in "Execute" - Start menu window. In addition to the script file, further parameters can be transferred.
Web links
Individual evidence
- ↑ a b Feature Information (Windows Scripting - JScript) ( English ) Microsoft. Retrieved May 16, 2019.
- ↑ a b JavaScript - JScript - ECMAScript version history ( English ) Webmaster World. Archived from the original on July 10, 2017. Retrieved May 16, 2019.