formatOnType does not work when you navigate away from the edited line

[tnikodym]

• VSCode Version: 1.5.2
• OS Version: OSX 10.11.6

I have "editor.formatOnType": true in my settings.json. It works fine when I press enter or closing bracket, but when I navigate away from the edited line (e.g. press UP/DOWN arrow, mouse-click, ...) it does not format the edited line.

Steps to Reproduce:

1. Type let a = 1;
2. Press enter
3. Navigate back to the line and add some whitespace before the number 1
4. Press DOWN arrow
5. Notice that the line stays incorrectly formated

[jrieken]

Yes - format on type only works on certain trigger characters. Extension define what those characters are, for instance TypeScript uses \n, ;, and }.

Assuming your sample is TypeScript/JavaScript this is what happens

• press enter on well formatted let a = 1; triggered format on type (\n)
• format on type returns without edits
• go back to line, miss-format, go back -> No change because arrow keys don't trigger format on type