從json輸出中檢索數據的問題

Question

當談到json時，我是一個noob。我越用它，我開始喜歡它。我有一個看起來像這樣的輸出

[ 
    { 
     "product": { 
      "id": "6", 
      "category": "Books", 
      "created": "2010-04-13 15:15:18", 
     }, 
     "availability": [ 
      { 
       "country": "United Kingdom", 
       "price": "$13.99", 
      }, 
      { 
       "country": "Germany", 
       "price": "$13.99", 
      } 
     ]    
    } 
] 

其實我只列出了一個產品，但輸出有許多列出的產品。我想循環瀏覽這個json輸出並獲取所有產品的類別，可用的國家和使用fbjs的價格。

我很感激任何幫助。

謝謝。

Answer 1

如果你的JSON是這樣的，

var products = [ 
    { 
     "product": { 
      "id": "6", 
      "category": "Books", 
      "created": "2010-04-13 15:15:18", 
     }, 
     "availability": [ 
      { 
       "country": "United Kingdom", 
       "price": "$13.99", 
      }, 
      { 
       "country": "Germany", 
       "price": "$13.99", 
      } 
     ]    
    }, 
    { 
     "product": { 
      "id": "7", 
      "category": "Books", 
      "created": "2010-04-13 15:15:18", 
     }, 
     "availability": [ 
      { 
       "country": "United Kingdom", 
       "price": "$13.99", 
      }, 
      { 
       "country": "Germany", 
       "price": "$13.99", 
      } 
     ]    
    } 
] 

您可以遍歷：

for(var index = 0; index < products.length; index++) { 
    alert(products[index].product.category); 
}