Javascript迭代Json Array以获取值 [英] Javascript iterate Json Array to get values

问题描述

我有一个下面的JavaScript

I have a below JavaScript

var arr = [];
arr.push({0:'Zero'});
arr.push({1:'One'});
console.log(Object.keys(arr));
console.log(Object.values(arr)); //Not getting expected result

我想分别打印键和值，可以获取键，但不能获取值.

I want to print keys and values separately, could able to fetch keys but not able to get values.

推荐答案

这是因为arr是一个数组，而不是对象.您应该像这样使用map:

It's because arr is an array, not an object. You should use map like so:

var arr = [];
arr.push({0: 'Zero'})
arr.push({1: 'One'})
console.log(arr.map(e => Object.keys(e)).flat(1));
console.log(arr.map(e => Object.values(e)).flat(1));

我用flat使数组变平，而不是嵌套.

I used flat to make the array flat, instead of it being nested.

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