Javascript has 2 types of comments, and both work in all browsers.
// comment
denotes an “inline” comment. Any characters on that line after the//
are a comment./* comment */
are “block” comments. Any characters withing the/*
and*/
are a comment, and can span multiple lines.
Both are valid in all javascript implementations, universally.
Style is the only real concern here. And that is a far more subjective question.
solved Javascript comments on same line as code: yes or no? [closed]