[SOLVED] How to replace href of all anchor tags in a bookmarklet?

How to replace href of all anchor tags in a bookmarklet?

I'm trying to make a bookmarklet that changes every link on a page to "https://www.youtube.com/watch?v=dQw4w9WgXcQ" and iv'e gotten this far:

a.forEach(function(a){
a.href = "https://www.youtube.com/watch?v=dQw4w9WgXcQ";
});
alert("done.");

The html editor shows that the href of the "a" tag has changed but won't go to the new link. Im using this bookmarklet on websites I don't own, so I can't add classes or id's.

If you are going to close the question due to it being a duplicate, please tell me the duplicate.

Solution

Try:

javascript:var url="https://github.com/"; var all_links = document.getElementsByTagName("a");for (var link_num = 0; link_num < all_links.length; link_num++) {var link = all_links[link_num];link.href = url;};alert("changed " + link_num + " links")

Change the url variable to whatever you want and it should change all links to that and alert the amount of links changed.