Find class that starts with string and return the rest

script.js

	$("div[class*='fa-']").each(function(){
		var check = "fa-";         
		// Get array of class names   
		var cls = $(this).attr('class').split(' ');       
		for (var i = 0; i < cls.length; i++) {
			// Iterate over the class and log it if it matches
			if (cls[i].indexOf(check) > -1) {        
				console.log(cls[i].slice(check.length, cls[i].length));
				return cls[i].slice(check.length, cls[i].length);
			}       
		}    
	});