Turn a Javascript Array Into a Human Readable String. See http://rogerstringer.com/2015/02/22/javascript-pretty-array-to-human-readable-string/

humanify.js

var items = ["item1","item2","item3","item4"];

console.log(humanify(items));

function humanify(array){
	if( array.length > 1 ){
		return array.slice(0,-1).join(', ') + ' & ' + array[array.length -1];
	}
	return array[0];
}