axe-core/lib/core/utils/to-array.js

Accessibility engine for automated Web UI testing

/**
 * Converts array-like (numerical indicies and `length` property) structures to actual, real arrays
 * @param	{Mixed} thing Array-like thing to convert
 * @return {Array}
 */
axe.utils.toArray = function (thing) {
	'use strict';
	return Array.prototype.slice.call(thing);
};


/**
 * Creates an array without duplicate values from 2 array inputs
 * @param	{Array} arr1 First array
 * @param	{Array} arr2 Second array
 * @return {Array}
 */
axe.utils.uniqueArray = (arr1, arr2) => {
	return arr1.concat(arr2).filter((elem, pos, arr) => {
		return arr.indexOf(elem) === pos;
	});
};