如何通过javascript中的数据结构按名称获取对象

Question

我在JavaScript中具有以下Datastructur

  data: {…}
        0_0: {…}
            file: “xy.jpg”
            height: 256
            width: 256
            <prototype>: Object { … }
        0_256: {…}
            file: "xx.jpg"
            height: 256
            width: 256
        <prototype>: Object { … }

如何从“ 0_256”获取数据？

Answer 1

您需要使用data['0_256']：

var data = {
    '0_0': {
          file: "xy.jpg",
          height: 256,
          width: 256
     },
    '0_256': {
          file: "xx.jpg",
          height: 256,
          width: 256
    }
};
console.log(data['0_256']);

Answer 2

您可以尝试“ data ['0_256']”

`console.log(data['0_256'])`

var   data = { 
        "0_0" :{
            file: "xy.jpg",
            height: 256,
            width: 256
            },
        "0_256":{
            file: "xx.jpg",
            height: 256,
            width: 256
            }
          }
console.log(data['0_256']);