[Just for wasting time] Add-on function for String to capitalize a words

String-capitalize.js

/* Add-on prototype function on String */

String.prototype.capitalize = function() {
	var string = this.toString();
	
	if (string.length === 0) return;

	var split = string.split(' ');

	return split.map(function(item) {
		return item.charAt(0).toUpperCase() + item.slice(1, item.length);
	}).join(' ');
}

/* Usage */

'lorem'.capitalize() // Lorem
'lorem ipsum dolor sit amet'.capitalize() // "Lorem Ipsum Dolor Sit Amet"
''.capitalize() // undefined