JS将数组拆分为X个块，然后是Y个块，依此类推

function chunkArray(arr, size) {
  var result = [];
  for (var i = 0; i < arr.length; i += size) {
    result.push(arr.slice(i, i + size));
  }
  return result;
}

var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var chunkedArray = chunkArray(array, X);
console.log(chunkedArray);

function chunkArray(arr, size) {
  return arr.reduce(function(result, item, index) {
    if (index % size === 0) {
      result.push(arr.slice(index, index + size));
    }
    return result;
  }, []);
}

var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var chunkedArray = chunkArray(array, X);
console.log(chunkedArray);

function chunkArray(arr, size) {
  if (arr.length <= size) {
    return [arr];
  }
  return [arr.slice(0, size)].concat(chunkArray(arr.slice(size), size));
}

var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var chunkedArray = chunkArray(array, X);
console.log(chunkedArray);