Итерации по массиву или объекту с подчеркиванием

Question

Почему title return null! , есть какая-то путаница ни с чем!

Вот мой код

_.each(collection.models, function(element, index, list){ 
      console.log(JSON.stringify(element)); //{"title":"Dipped Bunny Blossom","id":49,"created_at":"2015-03-24T10:16:17Z","updated_at":"2015-03-24T13:56:12Z","type":"simple","status":"publish","downloadable":false,"virtual":false,"permalink":"http://beta-it.com/ticarttest/shop/dipped-bunny-blossom/","sku":"","price":"50.00","regular_price":"50.00","sale_price":null,"price_html":"<span class=\"amount\">&#36;50.00</span>","taxable":false,"tax_status":"taxable","tax_class":"","managing_stock":false,"stock_quantity":0,"in_stock":true,"backorders_allowed":false,"backordered":false,"sold_individually":false,"purchaseable":true,"featured":true,"visible":true,"catalog_visibility":"visible","on_sale":false,"weight":"1.00","dimensions":{"length":"50","width":"50","height":"50","unit":"cm"},"shipping_required":true,"shipping_taxable":true,"shipping_class":"","shipping_class_id":null,"description":"","short_description":"","reviews_allowed":true,"average_rating":"4.50","rating_count":2,"related_ids":[34,43,45,47,120],"upsell_ids":[],"cross_sell_ids":[],"parent_id":0,"categories":["BIRTHDAY","BUSINESS GIFTS","DIPPED FRUIT"],"tags":[],"images":[{"id":50,"created_at":"2015-03-03T10:16:10Z","updated_at":"2015-03-03T10:16:10Z","src":"http://beta-it.com/ticarttest/wp-content/uploads/2015/03/Dipped-Bunny-Blossom.jpg","title":"Dipped-Bunny-Blossom","alt":"","position":0}],"featured_src":"http://beta-it.com/ticarttest/wp-content/uploads/2015/03/Dipped-Bunny-Blossom.jpg","attributes":[],"downloads":[],"download_limit":0,"download_expiry":0,"download_type":"","purchase_note":"","total_sales":1,"variations":[],"parent":[]} 
     console.log(element.id); // return 49 ok 
     console.log(element.title); //return null !!!! 

     // We are looping through the returned models from the remote REST API 
     // Implement your custom logic here 
    }); 

Answer 1

Для коллекции позвоночника, ваш код должен выглядеть следующим образом:

collection.each(function(model) { 
    console.log(model.attributes); 
    console.log(model.id); 
    console.log(model.get('title')); 
}); 

Большинство атрибутов в системообразующих моделей должны быть доступны с помощью get method. id является special case, к которому можно обратиться через get или в качестве прямого id. Согласно документам:

Если вы установите идентификатор в хэш-атрибутах, он будет скопирован в модель как прямое свойство.