const chunks = _.chunk(values, 4);

const chunk = (input, size) => {

  return input.reduce((arr, item, idx) => {

    return idx % size === 0

      ? [...arr, [item]]

      : [...arr.slice(0, -1), [...arr.slice(-1)[0], item]];

  }, []);

};

​

const chunks = chunk(values, 4);

const chunk = (arr, chunkSize = 1, cache = []) => {

  const tmp = [...arr]

  if (chunkSize <= 0) return cache

  while (tmp.length) cache.push(tmp.splice(0, chunkSize))

  return cache

}

​

const chunks = chunk(values, 4);

var chunks = [];

​

for (var i = 0; i < values.length; i += 4) {

    chunks.push(values.slice(i, i + 4));

}