_: Get object key based on value search

by kyllle

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>

JavaScript

//http://stackoverflow.com/questions/9907419/javascript-object-get-key-by-value

var domains = {
	BBC: 'http://www.bbc.co.uk',
  GOOGLE: 'http://www.google.com'
};

console.log((_.invert(domains))['http://www.bbc.co.uk']);