VS Code ignores quote settings

Question

I've a project with .vue and .js files. In my .vue files, all quotes I type stay single quotes. But in my .js files, even if I type a singlequote ('), it becomes a double quote.

Here, you can see my settings.json-file:

Answer 1

I've just found out: The .editorconfig file overrides the settings.json file. So I had to add to the .editorconfig file the following line:

quote_type = single