Add jquery to any web page in Chrome DevTools.js

// First let's call the 'angles' 
var jq = document.createElement('script');
jq.src = "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);

// Second, give this jQuery script time to load and:
jQuery.noConflict();