如何根据jsonarray里面的某一个值比较,来获取相应的集合呢?

比如说我有一个jsonarray数组

[

{

"title": "对",

"option": 1,

"score": 5

},

{

"title": "错",

"option": 2,

"score": 0

},

{

"title": "不知道",

"option": 3,

"score": 0

}

]

我该如何根据jsonarray里面的option来获取到对应的集合呢?

列如:当我传的option为2时,我想要的是与之对应的集合

{

"title": "错",

"option": 2,

"score": 0

},


回答:

如果你用的是JAVA可以使用Google 的 Gson 库将 JSON 数据转换为 Java 对象,
教程:

https://cn.bing.com/search?q=Google+%E7%9A%84+Gson+%E5%BA%93%...

下面是js的

const jsonArray = [

{

"title": "对",

"option": 1,

"score": 5

},

{

"title": "错",

"option": 2,

"score": 0

},

{

"title": "不知道",

"option": 3,

"score": 0

}

];

const result = jsonArray.find(item => item.option === 2);

result 的值:

{

"title": "错",

"option": 2,

"score": 0

}

使用 Array.prototype.filter() 方法来查找多个符合条件的元素:

const jsonArray = [

{

"title": "对",

"option": 1,

"score": 5

},

{

"title": "错",

"option": 2,

"score": 0

},

{

"title": "不知道",

"option": 3,

"score": 0

},

{

"title": "再来一个错",

"option": 2,

"score": 0

}

];

const results = jsonArray.filter(item => item.option === 2);

results 的值:

[

{

"title": "错",

"option": 2,

"score": 0

},

{

"title": "再来一个错",

"option": 2,

"score": 0

}

]

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