dom-regex/src/polyfills/array-find.js

JavaScript library for querying DOM elements with Regular Expressions

(function () {
	if (!Array.prototype.find) {
		Array.prototype.find = function (predicate) {
			'use strict';
			if (this == null) {
				throw new TypeError('Array.prototype.find called on null or undefined');
			}
			if (typeof predicate !== 'function') {
				throw new TypeError('predicate must be a function');
			}
			var list = Object(this);
			var length = list.length >>> 0;
			var thisArg = arguments[1];
			var value;

			for (var i = 0; i < length; i++) {
				value = list[i];
				if (predicate.call(thisArg, value, i, list)) {
					return value;
				}
			}
			return undefined;
		};
	}
})();