如何在Javascript中复制Python的dict.items()? [英] How can I replicate Python's dict.items() in Javascript?

问题描述

在Javascript中，我有一个JSON对象，我只想从中处理项目:

In Javascript I have a JSON object from which I want to process just the items:

var json = {
    itema: {stuff: 'stuff'},
    itemb: {stuff: 'stuff'},
    itemc: {stuff: 'stuff'},
    itemd: {stuff: 'stuff'}
}

在Python中，我可以做到

In Python I could do

print json.items()
[{stuff: 'stuff'},{stuff: 'stuff'},{stuff: 'stuff'},{stuff: 'stuff'}]

我可以这样做吗?

推荐答案

在不扩展Object.prototype的情况下，您无法像在python中那样进行此操作，而您不需要这样做，因为这是通往苦难的途径.

You cannot do this the same way as in python without extending Object.prototype, which you don't want to do, because it is the path to misery.

您可以轻松地创建一个辅助函数，该函数可以遍历对象并将值放入数组中，如下所示:

You could create a helper function easily that could loop over the object and put the value into an array however, like this:

function items(obj) {
 var i, arr = [];
 for(i in obj) {
   arr.push(obj[i]);
 }
 return arr;
}

Ps:JSON是一种数据格式，您拥有的是对象文字.

Ps: JSON is a data format, what you have is an object literal.

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