How may I replace word and digit combination with blank?

Question

How to replace

url : http://www.abc.com&query_id=123&query_id1=12

to : http://www.abc.com&query_id1=12

How to replace any query_id with blank in javascript ?

Answer 1

var url = "http://www.abc.com&query_id=123&query_id1=12";
    url = url.replace(/(\?|&)query_id=[^&]*/g, "");

console.log(url); /* returns http://www.abc.com&query_id1=12 */

anyway note that you should replace the first occurence of & with a ?

http://www.abc.com&query_id=123&query_id1=12

should be written as

http://www.abc.com?query_id=123&query_id1=12