JSFiddle - React, Tailwind, and code Playground
by mihaifm
HTML
<div id="x1"></div>
<div id="x2"></div>
<div id="x3"></div>
JavaScript
var x1 = 'var v="script"; var s=document.createElement(v);';
var x2 = 'var s=document.createElement("script");';
var x3 = "var s=document.createElement('scipt');";
var re = /document\.createElement\((['"]*)(.+?)\1\)/;
$('#x1').html(x1.match(re)[2]);
$('#x2').html(x2.match(re)[2]);
$('#x3').html(x3.match(re)[2]);
//x1.match(re)[0] contains the entire match
//x1.match(re)[2] contains the second group with the result