Is there a way to reformat a multi-line list into a single line, and vice-versa?

Given this code:

const x = [

Is there a way to quickly reformat it (with a keystroke) to this?

const x = [2, 3, 8];

And also take a single line like the one above and break it out into multi-line, too.


1. In Settings | Editor | Code Style |JavaScript, Wrapping and Braces, turn Keep when reformatting/Line Breaks OFF, then format your code (Code/Reformat Code...)

2. In Settings | Editor | Code Style |JavaScript, Wrapping and Braces, Array Initializer, choose 'Wrap always' and enable 'Place ']' on new line', then reformat code



I believe that actual question was "how to switch between such formatting (both ways) at any time" -- something similar to how "Toggle Case" sort of actions work.


Andriy is right. I'm looking for a quick key command that will toggle.


I see. Then the answer is simple - no, where is no way to do this


Would be a handy feature.  Any plugins available?


@Stephen Wille

No idea TBH -- I personally know none.


Yep agreed... Came here looking for this feature.  Would be very handy as it's something I often do manually, both ways.


The closest solution I know of is to bring array elements onto as few lines as possible. Highlight the lines you want to bring in, then Ctrl-Shift-J . To avoid having the formatter distribute array elements one per line again, put


before the code you do not want to have auto-formatted and



move a list to 1 line, you can use join line.  put the cursor on the first item, and press ctrl-shift-j.

To split the list, you can use find and replace with regex option. Higlight the list, then find the delimiter, and then replace the delimiter with delimiter\n .

BTW, the delimiter can be a space.


For singlelining code, I often do Search & Replace with regex: '\n\s*' => ''

For reverse action, I use code formatting, it does most of the job well.


I'm surprised that is still not a thing. I have created an issue for that You can vote for it if you're interested


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