JSFiddle - React, Tailwind, and code Playground
by TheFiddler
HTML
<button id="go">Check</button>
<div id="result">:</div>
JavaScript
$("#go").click(function() {
var locText ="blog.step2.com";
var step2Domain = new RegExp('www.step2.com', 'i');
var step2Redirect = new RegExp('^step2.com', 'i');
if(step2Domain.test(locText) || step2Redirect.test(locText)){
$("#result").html('<p>Yes</p>');
}
else{
$("#result").html('<p>No</p>');
}
});