What's preventing me from populating my Array object?

if (typeof response == "object") {
    store = new dojo.data.ItemFileReadStore({
        data : response
    });
    console.warn("Loaded to Store");
    var itemArray = new Array();
    var completed = function(items) {
        for(var i = 0; i < items.length; i++) {
            console.log(store.getValue(items[i],"itemlabel"));
            itemArray.push(store.getValue(items[i]));
        }
    };
    var error = function() {
        console.log("Error in fetching data from Store");
    };

    store.fetch({onComplete: completed, onError: error});
    console.warn("Item count"+ itemArray.length);

Despite the above code, my Item Count always ends up being 0.

console.log(store.getValue(items[i],"itemlabel"));

In the callback method, the value above is printed.

If I need to populate my itemArray, what should I do?

Answer №1

Before the completed function populates the itemArray with data, you're already printing out itemArray.length. Keep in mind that completed is called asynchronously.

To accurately display the length of itemArray, make sure to do so after the for-loop within the completed function.

Answer №2

Hey there! Solving your issue is actually quite simple, but before we dive in, I suggest utilizing

var completed = function(items) {
    dojo.forEach(items, function(item) {
        console.log(store.getValue(items[i],"itemlabel"));
        itemArray.push(store.getValue(items[i]));
    }, this);
    proceedToNextStep(itemArray);
};

After that, you'll want to create a function that will continue the process once the itemArray is loaded...

proceedToNextStep: function(itemArray){
    // Implement whatever needs to be done here
},

You may also consider incorporating dojo.publish / dojo.subscribe for additional flexibility.

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