Because of its nature, Scala code is really difficult to edit without proper coding assistance. And sometimes said assistance is too slow which makes it not that useful. That's why we never stop improving our Scala plugin performance. This time we've reduced the time needed to provide coding assistance within methods with a defined return type. As a result, code completion and inspections in our latest EAP build now work much faster. Before: After (see how much faster it is, the animation is 100% real time snapshot): To give the new EAP build a try, download it from the EAP pa

For Java, in addition to the regular completion, IntelliJ IDEA provides so-called Postfix completion: it lets you modify a previously entered expression by adding a "postfix" to it and pressing Tab. This way you can transform your code without unnecessary backward caret jumps. Many users've asked us to support this feature for Scala as well. You asked, we did it: When a transformation can be applied to several expressions, the IDE will offer you a choice: Postfix completion suggestions are included in the common completion list, and if you want to see only postfix completion appli

If you're using the EAP update channel, you might've noticed a new version of the  Scala plugin available. In addition to a bunch of bugfixes inside the new update you'll also find a few nice new features. Coding assistance for interpolated strings Interpolated strings is a great feature of the Scala language. Better coding assistance for writing those interpolated strings is a new feature of IntelliJ IDEA. Now it's possible to quickly turn a string to an interpolated string simply by adding a variable reference. Notice  that the IDE will take care of adding brackets: We hope this add

In Scala, you can use anonymous functions. Now you can generate them automatically in case if it's method call argument. Lets, for example you have the following code: Then use smart completion (Ctrl + Shift + Space) to see an appropriate variant: After the completion you will get: This feature works like Live Template, so you will be able to replace variable names and abstract types (in the next example Int is chosen automatically for 'foldLeft' type parameter, but you can replace it, if you want). Also you can use brace syntax for method call (then partial anonymou