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javascriptshebanghashbang

Does the hashbang (#!) have any functionality client side?

I recently learned about the hashbang syntax for writing comments in JavaScript, and need to know if it is or has the potential to be any different then just putting a // at the top of a file. Are there any conventions associated with the hashbang?

I am referring to usage in a browser environment only, not in a shell or NodeJS, etc.

I am asking because I am writing about JavaScript syntax and need to make sure it is 100% correct.

Solution

  • Hashbang has no meaning to JavaScript, as far as it's concerned it's just a comment. The only reason it exists is because Unix treats files beginning with #! specially when you try to run them as commands, and this can be used to run node.js automatically on a server.

    This is meaningless in a browser, which loads scripts explicitly. So The hashbang has no special function on the client.