Search and replace specific query string parameter value in javascript

Question

I have a string which is something like this :

a_href= \"www.google.com/test_ref=abc\";

I need to search for test_ref=abc in thisabove stri

Answer 1

Based on this discussion I have created a references function. enjoy

updateUrlParameter(url, param, value){
    var regex = new RegExp("/([?|&]" + param + "=)[^\&]+/");
    return url.replace(regex, '$1' + value);
}