Question

I have this JS code. I need to pass the loadItemUrl value to the callback function off loadStruct method. The loadStruct is a function of a JS framework that we’re using.

In this example is the loadItemUrl value undefined in the inner scope of the callback function.

Form.prototype.Create = function (loadItemUrl) {

     var dhxForm = new dhtmlXForm(this.divId);

     dhxForm.loadStruct(this.url, function () {

        if (loadItemUrl)
            this.load(loadItemUrl);

    });
}

Answer 1

If loadItemUrl is undefined then it is because you aren’t passing a defined value to Form.Create when you call it.

The callback function is defined in the scope of the Create function, so it will have access to any variables that exist there.