JetBrains WebStorm 4.0 in Harmony with ECMAScript

The intelligent JavaScript IDE gives web developers a way to stay one step ahead of the curve, supporting the latest ECMAScript features and Code Coverage in JS unit testing

April 17, 2012

Prague, Czech Republic, April 17, 2012 — JetBrains®,the creators of IntelliJ IDEA, ReSharper and other intelligent, productivity-enhancing tools for software developers, have announced the general availability of WebStorm 4.0, an innovative JavaScript IDE.

WebStorm is already known for what many developers call “reading your thoughts,” or anticipating your next step. All the while, WebStorm has kept pace with the latest development technology trends. This release is no exception, as it includes support of the newest features in the popular scripting language ECMAScript Harmony.

“We always try to adopt best practices that not only influence your productivity but also raise your code quality, and we inspire other developers to do the same,” said Alexey Gopachenko, WebStorm project lead. “In WebStorm 4.0, we introduced Code Coverage for JavaScript Unit Test, which lets you see how much code is untested — right as you code. The big idea is to prevent bugs instead of catching them.”

Additional key features of WebStorm 4.0 include:

  • HTML5 Boilerplate and other Web Application Templates
  • Easier JavaScript Library Scope Configuration
  • Smarter ordering of JavaScript completion options
  • Custom code folding regions

To try JetBrains WebStorm 4.0 today, download its free 30-day evaluation, with no registration necessary, at

Personal and commercial licenses are available, both affordably priced. Each license includes free WebStorm updates for 1 year after the purchase date, covering major new releases. See

About JetBrains

JetBrains is a technology-leading software development firm specializing in the creation of intelligent, productivity-enhancing software. The company is widely known for its innovative, award-winning Java™ integrated development environment IntelliJ® IDEA (see details at, PhpStorm — a lightning-smart PHP IDE (see, RubyMine — a Ruby and Rails IDE (, and YouTrack — an innovative and efficient issue tracker (, among others. JetBrains maintains its headquarters in Prague, Czech Republic, with its R&D labs located in St. Petersburg, Russia; Munich, Germany; and Boston, Massachusetts. For more information see

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Note to Editors: JetBrains, IntelliJ, IntelliJ IDEA, ReSharper, PhpStorm, WebStorm, RubyMine and YouTrack are trademarks or registered trademarks of JetBrains, s.r.o. All other trademarks are the properties of their respective owners.

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