Increment a number in a string based on the substring before it in JS

Question

I need to increment a number in a url, the number is always preceded by page/ so like page/2/ however the url could be constructed any which way and ma

Answer 1

You could look for a following slash and the end of the string and replace the number.

let link = '//localhost:3000/insight/page/2/';
let next = link.replace(/\d+(?=\/$)/g, n => +n + 1);

console.log(next);