Question

jQuery('ol.productList li.product input[name*="cart.pAsin."]').load().each(function(){   // each function 
    var asinId = jQuery(this).val();
    var pUrl    = jQuery(this).siblings("a").attr('href');
    var imgPath = jQuery(this).siblings("a").children('img').attr('src');
    var productTitle = jQuery(this).siblings("div.productDetails").children('h4.title').text();
    var descUrl = '/api/product/asin/' + asinId;
    var productDesc = '';
        jQuery.getJSON(descUrl, function(data) {
            var attr = data.attributes[1];
            productDesc = attr.productDescription;
            var allinfo = [];
            allinfo.push(asinId,productTitle,productDesc,pUrl,imgPath);
            alert(allinfo[0]);

        });
    });

alert('Asin id :'+ asinId + ' Product Url : '+ pUrl + ' Image Path : ' +imgPath + ' Product Titl : '+productTitle+ ' Product Discription : ' +productDesc );

Answer 1

You can’t access asinId, pUrl, etc as they are defined within the scope of anonymous function you passed to each() method.

To even make matters more confusing, the productDesc might not also be the value you are looking for, even if you try to access it within the said anon function as getJSON is operating under AJAX and is asynchronous, meaning the value of productDesc after .getJSON call can’t be guaranteed to be assigned after .getJSON handler finished.

You could define asinId etc out of the each() method and then it’ll be available outside the anon function scope:

var asinId = jQuery(this).val();
var pUrl    = jQuery(this).siblings("a").attr('href');
var imgPath = jQuery(this).siblings("a").children('img').attr('src');
var productTitle = jQuery(this).siblings("div.productDetails").children('h4.title').text();
var descUrl = '/api/product/asin/' + asinId;
var productDesc = '';

jQuery('ol.productList li.product input[name*="cart.pAsin."]').load().each(function(){   // each function 
   asinId = jQuery(this).val(); // notice this is without var keyword
   // rest of your code
});

alert('Asin id :'+ asinId + ' Product Url : '+ pUrl + ' Image Path : ' +imgPath + ' Product Titl : '+productTitle+ ' Product Discription : ' +productDesc );