Changing file EOL with vscode extension API

You can add this line to your user preferences settings (CTRL + ,):

"files.eol": "\n"

On the bottom right of vs code it will say lf or crlf. Click there and it will give an option to change.

pic of vs code

The solution is:

editor.edit(builder => {
    builder.setEndOfLine(vscode.EndOfLine.LF);
})

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