chunk-array.js

/**
 * chunk array into specific chunks :)
 * @param arr
 * @param len
 * @returns {Array}
 */
function chunkArray(arr, len) {
    if (!Array.isArray(arr)) return [];
    let chunks = [],
        i = 0,
        arrayLen = arr.length;
    while (i < n) {
        chunks.push(arr.slice(i, i += len));
    }
    return chunks;
}