Question

我有一些javascript數組，我無法控制格式或變量名稱。我需要將其中的6個組合成一個json數組。我有它非常接近，但似乎無法讓它遍歷變量列表以及數組元素的數量。

很明顯，我不記得如何處理JS中的變量或迭代以及我以前可以真正使用的一些幫助。

的軟件，其我需要解析輸出產生類似下面的東西：

<script type="text/javascript"> 
    var orderNum = 'OrderNum-485'; 
    var orderSubTotal ='130.8'; 
    var orderTotal ='130.8'; 
    var numOfItems ='4'; 
    var items =new Array('Item Name 1','Item Name 2','Item Name 3','Item Name 4'); 
    var ids =new Array('item-id-1','item-id-2','item-id-3','item-id-4'); 
    var codes =new Array('ITEM-CODE-1','ITEM-CODE-2','ITEM-CODE-3','ITEM-CODE-4'); 
    var qtys =new Array('1','1','1','1'); 
    var price =new Array('12.95','46.7','1.2','69.95'); 
    var orderTax ='0'; 
    var orderShipping ='0'; 
    var appliedPromoIdList =''; 
    var coupon =''; 
    var storeId ='store_id'; 
    var activeShipPromotionCount =''; 
    var itemImages =new Array('http://image_url','http://image_url','http://image_url','http://image_url'); 
</script> 

凡爲我需要傳遞數據過於軟件所需的以下（作爲一個對象，我管理得到它使用字符串完成）：

[ 
     { 
      "item_id":"item-id-1", 
      "desc":"ITEM-CODE-1", 
      "amount":"12.95", 
      "quantity":"1", 
      "name":"Item Name 1", 
      "image": "http://image_url", 
     { 
      "item_id":"item-id-2", 
      "desc":"ITEM-CODE-2", 
      "amount":"46.7", 
      "quantity":"1", 
      "name":"Item Name 2", 
      "image": "http://image_url", 
    ] 

這是我想出了：

<script type="text/javascript"> 
    var orderId = orderNum; 
    var createItemObjects = function() { 
    var keys = new Array ("item_id","desc","amount","quantity","name","image"); 
    var yahooKeys = new Array ("ids","codes","price","qtys","items","itemImages"); 
    var item,cartItems = []; 
    var c = numOfItems; 
    var k = yahooKeys.length; 
    var i = 0; 
    item = {}; 
    for (; i < k; i++) { 
     var arrayName = yahooKeys[i].toString(); 
     var buffer = eval('' + arrayName); 
     item[keys[i]] = buffer[0] //Ideally this should be the full range of 0-3 so that you can see each of the 4 items. 
     document.write("<br />Loop: "+i); 
     cartItems.push(item); 
    } 
    return cartItems; 

它產生正確格式化數據，但6個相同的元素的副本被緩衝的硬編碼值指示線沿線的

Answer 1

東西：

function createItemObjects(items, ids, codes, qtys, prices, images) { 
    var check = items.length === ids.length && ids.length === codes.length && 
      qtys.length === codes.length && prices.length === images.length; 
    if(!check) throw 'Arrays do not match'; 
    var results = []; 
    for(var i = 0; i < items.length; ++i) { 
     results.push({ 
      item_id: ids[i], 
      desc: codes[i], 
      amount: parseFloat(prices[i]), 
      name: items[i], 
      quantity: qtys[i], 
      image: images[i] 
     }) 
    } 
    return results; 
} 

var data = generate(items, ids, codes, qtys, prices, itemImages); 
var json_string = JSON.stringify(data);