JSFiddle - React, Tailwind, and code Playground

by Artem

JavaScript

'use strict';

var str1 = '/statistics/horses/data?sort=horse_style_name&filter%5Brace-type%5D=gb_ire-flat&filter%5Byear%5D=2017?page=1';
var str2 = '/statistics/horses/data?sort=horse_style_name&filter%5Brace-type%5D=gb_ire-flat&filter%5Byear%5D=2017';

var res = str1.replace(/(page=\d+|(.$))/, function(m, p1, p2) {
console.log(p1)
console.log(p2)
  if (p2) {
  	return p2 + '?page=100';
  }
	return 'page=100';
});

console.log(res);