Not sure how much open source you've done, but StandardJS is used in a lot of open source JS libraries/projects, and they have the "Add a space after keywords"

Not sure how much open source you've done, but StandardJS is used in a lot of open source JS libraries/projects, and they have the "Add a space after keywords" and "Add a space before a function declaration's parentheses" rules in it, so plenty of open source projects does it like this.