Javascript and JScript

Most JavaScript can also run as JScript.

JavaScript and JScript are two different programming languages. JavaScript runs in most web browsers with the most popularly used exception being Internet Explorer. JScript can run in Internet Explorer as well as a variety of other places. Most JavaScript can also run as JScript (and you can use feature sensing to handle those parts where different code is required). JScript provides lots of features that do not have a JavaScript equivalent and so those features should not be used for web pages.

Javascript and JScript