ut2/lib/chunk.js

一个现代 JavaScript 实用工具库。[点击查看在线文档]。

'use strict';

var baseSlice = require('./internals/baseSlice.js');
var native = require('./internals/native.js');
var isNil = require('./isNil.js');
var toInteger = require('./toInteger.js');

function chunk(array, size) {
    if (size === void 0) { size = 1; }
    size = toInteger(size);
    var length = isNil(array) ? 0 : array.length;
    if (!length || size < 1) {
        return [];
    }
    var result = Array(native.mathCeil(length / size));
    var resIndex = 0, index = 0;
    while (index < length) {
        result[resIndex++] = baseSlice(array, index, (index += size));
    }
    return result;
}

module.exports = chunk;