如何只讀取此類型鍵值

Question

"DoctorA": {"name": "Pharmaceuticals", "title": "Switzerland, 120000 employees","type":"yes"}, 
"DoctorB": {"name": "Consulting", "title": "USA, 5500 employees","type":"yes"}, 
"DoctorC": {"name": "Diagnostics", "title": "USA, 42000 employees","type":"no"}, 
"DoctorD": {"name": "Fin Serv. & Wellness", "title": "South Africa, employees","type":"no"} 

我正在使用data.speakers獲取它。

我想得到每一個醫生類型，所以我試過這個。

for (property in data.speakers) { 
    //alert(property) contains all the doctor name. 
    //i want type for each doctor indivdually. 
    for (key in data.speakers) { 
    var doctor = data.speakers[key]; 
    types.push(doctor.type); 

} 
alert(types.toSource()); 
} 

有沒有什麼辦法讓this.It將返回數組形式的所有數據類型（是，否，是，否}我想這樣的，首先我會得到doctorA並獲取其類型是。。不

Answer 1

在同一時間的所有值你並不需要2個循環，只有一個你似乎只想要這個：

var names = []; 
for (key in data.speakers) { 
    var doctor = data.speakers[key]; 
    names.push(doctor.type); 
} 

事實上，從您的評論，它看起來像你想要什麼可能是

var doctorTypes = {} 
for (key in data.speakers) { 
    var doctor = data.speakers[key], 
     type = doctor.type; 
    doctorTypes[key] = type; 
} 

然後doctorTypes["DoctorC"]會給你"no"。