Overview of app My RVC has an object of custom type 'Entry' that has various values (AssetURL, Notes for item). I pass an instance of this to two viewControllers in order to add information about the Entry into this instance for saving. I do this successfully, but am unsure about how I should be creating / destroying my objects. If I ...
I am looking for a SQL function to use in a BOE Report to generate data from the month selected in the prompt and the previous six months. ...
I've seen many other questions on this same topic but they're not very clear to me, someone new to Objective-C. I need a plain english explanation. 'Coder speak' is much too difficult for me to understand at this point in my learning. ...
I start out with date strings: from operator import itemgetter import datetime as DT # unsorted dates raw = (map(int, "2010-08-01".split("-")), map(int, "2010-03-25".split("-")), map(int, "2010-07-01".split("-"))) transactions = [] for year, month, day in raw: new = (DT.date(year, month, day), "Some data here") t...
Hi Stackoverflow, I have a design problem I cannot find a clean and nice solution to. I am developing in PHP but I believe this could occur in any language. My basic problem is that I have two objects that have circular interdependence at some level of indirection. That means I have a class (call it F) implementing the Facade pattern whi...
I am writing a function that returns a reference to an object of some encapsulated data structure and I want nobody to be able to change the object using that reference, is it possible to do this in c#? ...
var url_string = '/index.php/dvs/get_dvs/' + id + '/'; $.ll = {}; $.ll.dvs_data = {}; $.post(url_string,{}, function (data) { $.each(data.dvs, function(k,v) { $.each(v, function(dvs_name, dvs_value) { $.ll.dvs_data[dvs_name] = dvs_value; ...
What is the difference between declaring a field as val, lazy val and object inside a scala class, as in the following snippet: class A class B { val a1 = new A { def foo = 1 } object a2 extends A { def foo = 1 } lazy val a3 = new A { def foo = 1 } } ...
What's the difference between var myView = function () { //something goes here }; and var myView = function () { //something goes here return { a: x, b: y }(); I think the first snippet creates a "dynamic" class, so that you can say var anotherView = new myView(); and the second snippet is similar to a sing...
Hi, I'm developing a html5 browser multi-player RPG with node.js running in the backend with a web sockets plug-in for client data transfer. The problem i'm facing is accessing and updating user data, as you can imagine this process will be taking place many times a second even with few users connected. I've done some searching and fou...
My experience shows that object creation in Java is very slow. Often, I optimize my code by just removing object creation and using the same objects repeatedly. I am wondering if its similarly slow in other language with OOP base, because, to me, it is very counter intuitive that a language that's hardcore object oriented, takes so muc...
I've had trouble with people jumping to conclusions about what I need here, so please read this and think about it before answering. Here is the case: You have an incoming object. You do not know the structure of this object. You do however have a "target" to something in the object. So let's pretend there is myObject, and you have som...
Hi I could write the following to convert a object to and integer. Convert.ToInt32(myObject); But i could also write Int.parse(myObject.ToString()); Is there any difference? Which one should I be using? Thanks in advance. ...
hi all, I've been searching on google for that , but didn't found any answer. I want to use TouchesBegan but on a specific object, like a textview, a label, ... I've tried to replace "any object" by the pointer of my object but it doesn't work. Is there on other way to detect the touch on a object with a method , in witch I can tell a...
Possible Duplicate: Which is preferable: Free or FreeAndNil? when to use free and freeandnil? in my way, i usually use the .free when the object that created is something like "object.create;" that has no self or nil parameter. if there is, that's the time i will use the freeandnil(); am i doing it right? or it has a big def...
I have something like this: $i = 0; foreach($tracks['results'] as $track){ $trackName[$i] = $track['name']; $trackPlaycount[$track['name']] = $track['playcount']; $trackPercent[$track['name']] = $track['percent']; $i++; } $this->trackName = $trackName; $this->trackPlaycount = $trackPlaycount; $this->trackPercent = $tr...
I did this function for get results of a query directly in an useful datastructure. The problem is the follow: in the first console.log() call , inside the callback function, the stored_data var contains the exact results, in the second console.log() call the stored_data variable looks like not initialized. Suggestions?? Below the code: ...
Hi all, In my app I want to obtain a gps lock and record the coords. But I do not want to lock the device into looking for the gps. The user is to be free to traverse through the app and the different activities within. So If I call a locationListener in activity A, can I reference it in activities B C and D? if is was still in activ...
public class Animal { public Animal() { Console.Writeline("Animal"); } } public class Snake : Animal { public Snake() { Console.Writeline("Snake"); } } How many objects will be created in each of the following codes below? (Refer to the above code...) Animal myAni...
I am initializing and array of objects, i need something like this: Greyhound[1].StartingPosition = pictureBox1.Location; Greyhound[2].StartingPosition = pictureBox2.Location; and so on.. but I need to make it by a loop for ( ......... ) { Greyhound[i].StartingPosition = ????????? // what should go here } ...