Returns all element descendants of node that match selectors

selector-all.js

/**
 * Selector All
 *
 * @description 
 * Returns all element descendants of node that match selectors.
 *
 * @example
 * selectorAll('div');
 * selectorAll('div', document);
 *
 * @param {string} elements - DOM elements
 * @param {Element} [context=null]
 * @returns {Array<Element>}
 */
const selectorAll = (elements, context = null) => {
    let items;

    if (context instanceof Element) {
        items = context.querySelectorAll(elements);
    } else {
        items = document.querySelectorAll(elements);
    }

    let index = 0, length = items.length, itemsArray = [];

    for (; index < length; index++) {
        itemsArray.push(items[index]);
    }

    return itemsArray;
};