As you may know, there are different versions of the JavaScript language. Each JavaScript engine implementation adds some nice features that others don't have. To make sure that you only use features suitable for targeted environments, choose an appropriate one in Settings | JavaScript. (more…)

Recently JavaScript specification was incrementally advanced with: a) common coding pitfalls prevention mode (aka "strict mode") and b) nice (yet de-facto already used) existing library additions. With several browsers around the corner completely supporting new-but-backward-compatible standard we are HAPPY to announce that WebStorm 2.0 (and PhpStorm 2.0 too) will help YOU to use these new productive stuff! The good news is that when your code uses "use strict" (example on the left), the editor will mark as ERRORS all that accesses of undefined global variables, duplicated parameters / propert