JSFiddle - React, Tailwind, and code Playground

JavaScript

/* $(document).ready(function() {
 		var str = "party hat 1 for men";
   
    alert(str.substr(0, str.indexOf('1')+1));
});*/
var str = 'CWC%20-%20Maint%20Eng%20-%20El';
str = str.replace(/%20/g, " ");
console.log(str);
//or
var str = 'CWC%20-%20Maint%20Eng%20-%20El';
var de_str = decodeURIComponent(str);
console.log(de_str);