如何访问具有空格的对象属性？

Question

在下面的json文件中，我想访问“个人详细信息”，但我如何做到这一点，它不同于其他对象键。

{
"data": {
    "personal details": {
        "name": "Loren",
        "father's name'": "Geroge",
        "mother's name": "Lita"
    },
    "class": {
        "name": "Loren Gothem",
        "class": 7,
        "division": "3rd"
    },
    "address": {
        "temporary address": "Acn Block Ist Phase",
        "permanent address": "Bozane Trail Building Ist Floor"
    }
  }
}

Answer 1

您可以使用括号符号进行访问。

data['personal details']

所有其他键与空格以及一个单词相同。

data['personal details']['name']

但是最好用.点表示法来表示单个单词的json键

data['personal details'].name //  "Loren" 
data.address['temporary address'] // prints "Acn Block Ist Phase"

Answer 2

不确定您的需求，但是期望下面的片段可能会有帮助。

var a = {
"data": {
    "personal details": {
        "name": "Loren",
        "father's name'": "Geroge",
        "mother's name": "Lita"
    },
    "class": {
        "name": "Loren Gothem",
        "class": 7,
        "division": "3rd"
    },
    "address": {
        "temporary address": "Acn Block Ist Phase",
        "permanent address": "Bozane Trail Building Ist Floor"
    }
  }
};

// with JQuery
$.each(a.data, function(i,j){
document.writeln(JSON.stringify(a.data[i]));
})

// with Javascript for..each loop
for(b in a.data){
    document.writeln(a.data[b].name);

//  if(b == "personal details"){
//      do something else
//  }

}