用jQuery搜索JSON對象

Question

我有一個JavaScript對象，類似於JSON數組，我需要查詢。我想知道是否有一種方法可以使用jQuery來查找節點值，而無需遍歷整個對象並按順序測試每個節點的匹配。例如，這裏是對象：

Test = {}; 

Test.Species = { 
    "Category": [{ 
     "Product": [{ 
      "id": "a01", 
      "name": "Pine", 
      "description": "Short description of pine." 
     }, 
     { 
      "id": "a02", 
      "name": "Birch", 
      "description": "Short description of birch." 
     }, 
     { 
      "id": "a03", 
      "name": "Poplar", 
      "description": "Short description of poplar." 
     }], 
     "id": "A", 
     "title": "Cheap", 
     "description": "Short description of category A." 
    }, 
    { 
     "Product": [{ 
      "id": "b01", 
      "name": "Maple", 
      "description": "Short description of maple." 
     }, 
     { 
      "id": "b02", 
      "name": "Oak", 
      "description": "Short description of oak." 
     }, 
     { 
      "id": "b03", 
      "name": "Bamboo", 
      "description": "Short description of bamboo." 
     }], 
     "id": "B", 
     "title": "Moderate", 
     "description": "Short description of category B." 
    }, 
    { 
     "Product": [{ 
      "id": "c01", 
      "name": "Ebony", 
      "description": "Short description of ebony." 
     }, 
     { 
      "id": "c02", 
      "name": "Rosewood", 
      "description": "Short description of rosewood." 
     }, 
     { 
      "id": "c03", 
      "name": "Bubinga", 
      "description": "Short description of bubinga." 
     }], 
     "id": "C", 
     "title": "Expensive", 
     "description": "Short description of category C." 
    }] 
}; 

---

我怎麼能檢索產品的名稱和說明，如果給出的ID（再次，沒有一個嵌套的每（）通過整個事情）？我嘗試過jQuery的find（）和屬性選擇器（[id = a03]），但沒有成功......我唯一可以精確定位節點的方法是使用索引位置（例如 var x = $(Test.Species.Category[2].Product[1].attr('description'));），但這不是目標。

我在尋找這些方針的東西多，但是這似乎並沒有工作：

var x = $(Test.Species.Category[id='B'].Product[id='b02'].attr('description'));

Answer 1

var x = $(Test.Species.Category[0].Product[id='b02'].attr('description')); 
var x = $(Test.Species.Category[0].Product[id='b02'].attr('name'));