將一個(gè)大的數(shù)組按照長(zhǎng)度來(lái)劃分成不同的小數(shù)組
var chunk = function (array, size) {
var result = [];
for (var x = 0; x < Math.ceil(array.length / size); x++) {
var start = x * size;
var end = start + size;
result.push(array.slice(start, end));
}
return result;
}
