How can you check for a #hash in a URL using JavaScript?

Question

I have some jQuery/JavaScript code that I want to run only when there is a hash (#) anchor link in a URL. How can you check for this character using JavaScript?

Answer 1

Have you tried this?

if (url.indexOf('#') !== -1) {
    // Url contains a #
}

(Where url is the URL you want to check, obviously.)