javascript

On Tuesday, March 26, we’ve held a free webinar where JetBrains Technical Evangelist for PHP and .NET Maarten Balliauw went through the most important features of the latest PhpStorm 6 release. The recording of this webinar can be found on our YouTube channel. (more…)

Every JavaScript project bigger than "Hello, World" one uses libraries, often many of them. That's why handling libraries properly is so important for the IDE. Let's look at how WebStorm 6 supports libraries and what have been changed since version 5. If you haven't played with libraries lately, or just want to refresh memory, please take a look at our previous posts. And you can try all this in the recent WebStorm release. (more…)

One of the evolutions in JavaScript development is the new TypeScript language, an open-source superset of JavaScript that allows us to write code in a typed language which compiles to JavaScript. At JеtВrаins wе wоrk tirеlеssly tо bring аbоut mоrе аnd bеttеr suрроrt fоr this lаnguаgе. WebStorm 6 introduces full support for the TypeScript language through 3 new features: File Watchers, Sourcemaps and general support for working with code. (more…)

In WebStorm 5.0 we've introduced new JavaScript static checks and editor intentions to improve your coding experience. Besides checks produced by JSDoc annotations described in the previous post, some fresh inspections for JSON, jQuery selectors and other contexts have been added. (more…)

Today's post is about a nice feature set (many of you have been using for a long time) and its recent improvements. I'm talking about static type checking when type of parameter or variable on the left side of assignment or function return type is explicitly specified in JSDoc annotation. For 5.0 release we've supported Google Closure types syntax, so that quite complex situations can be handled more accurately and conveniently. To start with let's consider the most basic situation: (more…)

Hi JavaScript devs! There's no doubt that everyone is using one or another library to access/manipulate the DOM, and jQuery is currently the most popular one. And WebStorm has lots of small but really neat features to help you coding. Let's quickly get a feeling of what we have. 1. Selecting DOM elements The first thing you usually do is selecting some DOM element(s), right? WebStorm will help you with completion for the most used selector types, such as elements ID-s: or CSS classes: Sure you can use more complex selectors, which are also supported, like mixed matching:

Providing comments and annotations to your JavaScript code is a way to make it more definite and easier to read by other developers. It is especially important in large projects. Some static code analysis tools and verifiers take types and other information provided in JSDoc tags into consideration and report warnings if code is inconsistent with annotations. We suggest you as developers to developers to use annotations as much as possible. JSDoc tags support in PhpStorm/WebStorm 5.0 has been improved to make your coding experience better. When something is known about current context, more

Measuring JavaScript code coverage naturally complements unit testing. It provides a clear picture of which parts of your code remain untested, and helps you focus additional tests on the uncovered code. From now on, users of JsTestDriver can measure code coverage visually, right in the editor. (more…)

As you may know from the previous post about JavaScript libraries in PhpStorm & WebStorm, the main benefit of specifying JavaScript libraries in your project is to populate a completion list with only relevant members. We have reorganized the configuration panel at Settings|JavaScript|Libraries, so it hopefully become easier to use. If you simply want to select a library for the whole project, check the corresponding box. For more complex library scopes configuration, click Manage Scopes... button. Also, for per-file scopes settings, you can use JavaScript file context menu trigg

We are getting a lot of reports and ideas from you about the ordering of JavaScript completion options. So in WebStorm 4.0 and PhpStorm 4.0 we made small but important improvements. More relevant suggestions now appear at the top of the list in many cases. (more…)

This week's EAP brings you important bug fixes and improvements in all areas, with following changes most notable: PHP 5.4 is now fully supported - this build will recognize trait use section's method renames and conflict resolution rules and infer $this type in closures. There still some minor things to refine.. Anyway please pay attention to problems with 5.4 features and file all reports as new separate issues PHP "Language Level" setting is added to project - see Settings | PHP. It will also set features for Language Level inspection to mark as unavailable PHPDoc inheritance suppor

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…)