What does @cc_on mean in JavaScript?

Question

Sometimes I see @cc_on in JavaScript. What does it mean?

Joris

Answer 1

It's for conditional compilation. Seems to be a feature of Microsoft's "JScript" ECMAScript implementation.

Vincent

Not IE but JScript (ECMAScript implementation used in IE). This is important because JScript, for example, is also used in ASP, Windows Script Host, etc. See en.wikipedia.org/wiki/JScript – Berniecebernier