Question

Im trying to use javascript and regex to replace a substring in a url.

myurl.com/?page_id=2&paged=2 

shall become

myurl.com/?page_id=2&paged=3

this is my code that doesnt seem to work:

nextLink = 'myurl.com/?page_id=2&paged=2'
nextLink = nextLink.replace(/\/paged\=\/[0-9]?/, 'paged='+ pageNum);

What am i doing wrong here? Im new to regex.

Answer 1

You’re telling it to match /paged, but there’s no /paged in your string. Also, [0-9]? probably isn’t what you want for the digits. Try this:

nextLink.replace(/\&paged=[0-9]+/, 'paged=' + pageNum);

That tells it to replace &pageid=... (where ... is a series of one or more digits) with the given string.