JSFiddle - React, Tailwind, and code Playground

HTML

<div id="show">

</div>

JavaScript

var old = "&wid=128&hei=144&qlt=80";
var origin = "&wid=128&hei=144&qlt=80";
var wid = "256";
var hei = "288";
var qlt = "100";

origin = origin.replace("128", wid);
origin = origin.replace("144", hei);
origin = origin.replace("80", qlt);

document.getElementById('show').innerHTML += ("<strong>Old:</strong> " + old + "<br>");
document.getElementById("show").innerHTML += ("<strong>New: </strong>" + origin);

console.log(origin);