Knockout null reference example

gistfile1.js

// Makes the call 
$.ajax({
   url: "<SOME URL TO QUERY>",
   dataType: "json",
   cache: false
}).error(function (jqXHR, textStatus) {
            
}).success(function (data) {
    // Loop through each returned result
    for (var key in data) {
        // Loop through each property of each returned result
        for (var ckey in data[key]) {
            // Is it the problem property?
            if (ckey == "<WHAT EVER PROP YOU WANT TO CHECK>") {
                 // For example if we try to access data[0].Customer.Name and customer is null
                 // It will blow up knockout.js so lets do some fancy stuffs!
                 if (data[key][ckey] == null){
                      // Just simply set it from null to empty string.
                      data[key][ckey] = "";
                 }
             }
        }
    }
});