File | Settings | Project Settings | Code Style - Dart
Use this page to configure formatting options for Dart files. View the result in the Preview pane on the right.
On this page:
Tabs and Indents
Use this tab to specify where you want spaces in your code. To have WebStorm automatically insert a space at a location, select the check box next to this location in the list. The results are displayed in the Preview pane.
Wrapping and Braces
In this tab, customize the code style options, which WebStorm will apply on reformatting the source code. The left-hand pane contains the list of exceptions (Keep when reformatting), and placement and alignment options for the various code constructs (lists, statements, operations, annotations, etc.). The right-hand pane shows preview.
Alignment takes precedence over indentation options.
Keep when reformatting
Use the check boxes to configure exceptions that WebStorm will make when reformatting the source code. For example, by default, the Line brakes check box is selected. If your code contains lines that are shorter than a standard convention, you can convert them by disabling the Line brakes check box before you reformat the source code.
Use this tab to define where and how many blank lines you want WebStorm to retain and insert in your code after reformatting. For each type of location, specify the number of blank lines to be inserted. The results are displayed in the Preview pane.
|Keep Maximum Blank Lines||In this area, specify the number of blank lines to be kept after reformatting in the specified locations.|