编写一个将数组(第一个参数)分成大小(第二个参数)长度的组并将其作为多维数组返回的函数 [英] Write a function that splits an array (first argument) into groups the length of size (second argument) and returns them as a multidimensional array

问题描述

我正在解决一个JavaScript问题，要求我执行以下操作:

I am working through a javascript problem that asks me to:

编写一个将数组(第一个参数)分成大小(第二个参数)长度的组并将其作为多维数组返回的函数.

Write a function that splits an array (first argument) into groups the length of size (second argument) and returns them as a multidimensional array.

例如输入

chunk([0, 1, 2, 3, 4, 5], 2)

应返回块数组":[[0，1]，[2，3]，[4，5]]

should return the 'chunked arrays': [[0, 1], [2, 3], [4, 5]]

对于大多数示例，我都可以使用它，但是当有两个以上的块时，它将切换顺序，我不确定为什么.这是我编写的代码:

I can get it to work for most examples but when there are more than 2 chunks it switches the order and I am not sure why. Here is the code that I have written:

function chunk(arr, size) {
  var newArray = [],
      i, temp = arr;
  for (i = 0;i<= arr.length-size;i+=size){
    newArray.push(arr.slice(i,i+size));
    temp.splice(i,size);
  }
  newArray.push(temp);
  return newArray;
}
chunk(['a', 'b', 'c', 'd'], 2);

推荐答案

另一个版本:

function chunk(arr, size) {
    var result = [];
    while (arr.length > size) {
        result.push(arr.splice(0, size))
    }
    if (arr.length)
        result.push(arr);

    return result;
}

这篇关于编写一个将数组(第一个参数)分成大小(第二个参数)长度的组并将其作为多维数组返回的函数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！