I am trying to remove the ? character from all anchor href values with Javascript. For example, there are many URLs like this:
<a href="https://example.com/something/?">my anchor</a>
I tried this but getting the error index of is not a function
var url = jQuery("a");
var a = url.indexOf("?");
var b = url.substring(a);
var c = url.replace(b,"");
url = c;
To achieve this you can provide a function to prop() which runs against all elements in the collection. In the function you can accept the current href value as an argument then use replace() to remove the ? characters:
$('a').prop('href', (i, h) => h.replace(/\?/g, ''));<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<a href="https://example.com/something/?">my anchor 1</a>
<a href="https://example.com/somethingelse/?">my anchor 2</a>
<a href="https://example.com/?something">my anchor 2</a>Note that this will replace all instances of ? from anywhere in the href value. If you only want to remove it from the end of the string change the regex to /\?$/g