JSONObject如何根据键值更改值? [英] JSONObject how to change value depend on key value?

问题描述

我有一个像这样的json:

I've a json like this :

[
    {
        "pages": "foo1",
        "hasil": ""
    },
    {
        "pages": "foo2",
        "hasil": ""
    },
    {
        "pages": "foo3",
        "hasil": ""
    },
    {
        "pages": "foo4",
        "hasil": ""
    },
    {
        "pages": "foo5",
        "hasil": ""
    },
    {
        "pages": "foo6",
        "hasil": ""
    }
]

所以我想根据pages值更改hasil键的值， 我该怎么办?

so I want to change value of hasil key depending on pages value, how can I do that?

编辑以明确询问

我想像这样更改特定json键的值:

I want to change value of specific json key like this :

[
    {
        "pages": "foo1",
        "hasil": ""
    },
    {
        "pages": "foo2",
        "hasil": ""
    },
    {
        "pages": "foo3",
        "hasil": ""
    },
    {
        "pages": "foo4",
        "hasil": ""
    },
    {
        "pages": "foo5",
        "hasil": ""
    },
    {
        "pages": "foo6",
        "hasil": "1"
    }
]

研究: w3school ，推荐答案

据我了解您的问题陈述，您是否正在寻找类似的东西?

As fas as I understand your problem statment, are you looking for something like this?

var data = [
    {
        "pages": "foo1",
        "hasil": ""
    },
    {
        "pages": "foo2",
        "hasil": ""
    },
    {
        "pages": "foo3",
        "hasil": ""
    },
    {
        "pages": "foo4",
        "hasil": ""
    },
    {
        "pages": "foo5",
        "hasil": ""
    },
    {
        "pages": "foo6",
        "hasil": ""
    }
];

for(let key in this.data){
  if(this.data[key].pages == 'foo1'){
    this.data[key].hasil = 'hello';
  }
}
console.log(data);

这篇关于JSONObject如何根据键值更改值?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！