使用 underscore.js 将每个数组中 3 个对象的组中的数组值分组 [英] Group array values in group of 3 objects in each array using underscore.js

问题描述

下面是一个数组，我必须在其中对每个对象中的 3 个值进行分组

Below is an array in which I have to group 3 values in each object

    var xyz = {"name": ["hi","hello","when","test","then","that","now"]};

输出应低于数组 -

    [["hi","hello","when"],["test","then","that"],["now"]]

推荐答案

请参考这个 https://plnkr.co/edit/3LBcBoM7UP6BZuOiorKe?p=preview.参考 使用 underscore.js 将 javascript 数组分割成块

使用下划线就可以了

JS

 var data = ["a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "a10", "a11", "a12", "a13"];
var n = 3;
var lists = _.groupBy(data, function(element, index){
  return Math.floor(index/n);
});
lists = _.toArray(lists); //Added this to convert the returned object to an array.
console.log(lists);

或

使用链式包装器方法，您可以将两个语句组合如下:

Using the chain wrapper method you can combine the two statements as below:

var data = ["a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "a10", "a11", "a12", "a13"];
var n = 3;
var lists = _.chain(data).groupBy(function(element, index){
  return Math.floor(index/n);
}).toArray()
.value();

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