如何在json stringify输出中获取特定对象？ [英] How would I get the specific object in json stringify output?

问题描述

我怎么能得到全部没有。数组中的3个？



我尝试过的方法：



这里我的javascript：

How would i get the all no. 3 in the array?

What I have tried:

Here my javascript:

var arr_question = [{"$1z_1":3,"$2o_1":"Question 1."},{"$1z_1":3,"$2o_1":"Question2."},{"$1z_1":3,"$2o_1":"Question3."}]

我尝试在json中使用此代码：

I tried using this code in json:

console.log("output: "+arr_question.$1z_1);

但输出未定义



我只想得到所有的3号或全部数组中名为$ 1z_1的对象并将其全部加起来。

but the output is undefined

I just want to get all the no.3 or all the object named $1z_1 in the array and sum it all.

推荐答案

1z_1： 3 ，

1z_1":3,"

2o_1： 问题1。}，{

2o_1":"Question 1."},{"

1z_1： 3 ，

1z_1":3,"

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