對象和我的代碼

Question

var friends = { 
    bill: { 
     firstName: 'bill', 
     lastName: 'Green', 
     number: ('812381293'), 
     address : ['chicken st 12','rigth corner'] 
     } 
    steve: { 
     firstName: 'steve', 
     lastName: 'Brown', 
     number: ('812222381293'), 
     address : ['chicken st 12','rigth corner'] 
     } 
}; 
var list = function(friends) { 
    for (var name in friends) { 
     console.log(name); 
} 
} 
var search = function (friends) { 
    for (var key in friends) { 
     if (friends[key].firstName === name) { 
      console.log(friends[key]); 
      return friends[key]; 
     } 
    } 
} 

我有一個語法錯誤：

Unexpected identifier

請告訴我錯我的代碼？

這裏就是我需要在當前的任務做：

Define a function search that takes a single argument, name. If the argument passed to the function matches any of the first names in friends, it should log that friend's contact information to the console and return it.

Answer 1

你缺少一個逗號：

}, // <--- this! 
steve: { 

和函數的參數更改爲name，因爲你應該找它。

var search = function (name) { // change friends to name! 
    for (var key in friends) { 
     if (friends[key].firstName === name) { 
      console.log(friends[key]); 
      return friends[key]; 
     } 
    } 
} 

工作代碼：

var friends = { 
 
     bill: { 
 
      firstName: 'bill', 
 
      lastName: 'Green', 
 
      number: ('812381293'), 
 
      address: ['chicken st 12', 'rigth corner'] 
 
     }, 
 
     steve: { 
 
      firstName: 'steve', 
 
      lastName: 'Brown', 
 
      number: ('812222381293'), 
 
      address: ['chicken st 12', 'rigth corner'] 
 
     } 
 
    }, 
 
    list = function (friends) { 
 
     for (var name in friends) { 
 
      console.log(name); 
 
     } 
 
    }, 
 
    search = function (name) { 
 
     for (var key in friends) { 
 
      if (friends[key].firstName === name) { 
 
       console.log(friends[key]); 
 
       return friends[key]; 
 
      } 
 
     } 
 
    }; 
 

 
document.write('<pre>' + JSON.stringify(search('steve'), 0, 4) + '</pre>');