class Example(object): def the_example(self): itsProblem = "problem" theExample = Example() print(theExample.itsProblem) How do I access a class's variable? I've tried adding this definition: def return_itsProblem(self): return itsProblem Yet, that fails also. ...
Consider the following snippet: void Foo() { // ... } void Bar() { return Foo(); } What is a legitimate reason to use the above in C++ as opposed to the more common approach: void Foo() { // ... } void Bar() { Foo(); // no more expressions -- i.e., implicit return here } ...
Hello, Suppose the following: def MyFunc(a): if a < 0: return None return (a+1, a+2, a+3) v1, v2, v3 = MyFunc() # Bad ofcourse, if the result was None What is the best way to define a function that returns a tuple and yet can be nicely called. Currently, I could do this: r = MyFunc() if r: v1, v2, v3 = r else: # bad!! ...
Hi Everyone, I recently wrote a post: http://stackoverflow.com/questions/3452355/weird-error-in-c-program-removing-printout-breaks-program ...in which I was trying to solve a seemingly baffling problem, in which removing a cout statement would break my program. As it turned out, my problem was that I forgot to return my true/false succ...
Hi before someone storm "it's simple or duplicate" i swear i've searched but because it's pretty easy i couldn't find it between much more complex ones , unlucky maybe. Anyway my question is very simple , I have normal array int arr[5] that is passed to function fillarr(int arr[]) all i want is fixing the next code: int fillarr(int arr[...
Hi! I ran out of ideas... Imagine, I have fields that must be filled <select> <option value="1">Yes</options> <option value="2">No</options> <option value="3">Fine</options> </select> <input type="text" value="" name="name"> <input type="submit" value="go" name="go"> butI forgot to fill my name and I press submit. How to return option...
I am currently in a personal learning project where I read in an XML database. I find myself writing functions that gather data and I'm not sure what would be a fast way to return them. Which is generally faster: yields, or several append()s within the function then return the ensuing list? I would be happy to know in what situati...
I am writing a native function that will return multiple python objects PyObject *V = PyList_New(0); PyObject *E = PyList_New(0); PyObject *F = PyList_New(0); return Py_BuildValue("ooo", V, E, F); This compiles fine, however, when I call it from python, I get an error\ SystemError: bad format char passed to Py_BuildValue How can t...
Is there any standard compliant way to emulate 'return' with macro? Currently, I'm trying to wrapping _alloca function to emulate variable length array on stack (which is supported in C99) with macro in C++. Since the _alloca function manipulates stack pointer, I think inline function isn't suitable solution for this time. Below is the...
Hello, I'm trying to make a function that uses jquery's ajaxfunction to get some info from my ajax.php file. code: function ajaxIt(dataLine){ $.ajax({ type: "POST", url: "ajax.php", data: "ajax=true&"+dataLine, success: function(msg){ console.log("[AjaxIt]: "+dataLine+" returned "+msg); ...
Possible Duplicate: In C#, should I use string.Empty or String.Empty or ? Is it better to return string.Empty; instead of return ""; What do you think? ...
This is supposed to return a JSON object containing a list of picture filenames. The commented alert shows the correct data, but alert(getPicsInFolder("testfolder")); shows "error". function getPicsInFolder(folder) { return_data = "error"; $.get("getpics.php?folder=" + folder, function (data) { data = jQuery.parseJSON(data); ...
i would like to show a number of alertdialogs so the user has to handle off some questions (a little like a wizzard) is it possible to make the alertDialog wait until the user chooses something and then returning the choisen value? HashMap<Integer, Question> questions = DataConnector.getCallQuestions(position); int nextQuest...
Ok so I have this function: function getAreas(){ $.post("/custom_html/weathermap.php",'', function(data){ return data }, "json"); } which works fine. now what I am trying to do is to pass the data back to a variable, in other words: var data=getAreas() but it doesnt return anything....
Assuming the following code: <?php function doStuff($rowCount) { $rowCount++; echo $rowCount.' and '; return $rowCount; } $rowCount = 1; echo $rowCount.' and '; doStuff($rowCount); doStuff($rowCount); doStuff($rowCount); ?> The desired output is 1 and 2 and 3 and 4 and The actual output is 1 and 2 and 2 and 2 and I ...
I have a function that should return several values. Is this possible, perhaps with an array? If so, how would I reference that array? Do I have any alternatives to using an array? ...
level: beginner the following code will print 'False' def function(x): if len(x) == 5: return True else: return x[0] == x[-1] print function('annb') why does the line "else: return x[0] == x[-1]" print False? i do understand what's happening but i'm having difficulties to put this into plain english...how can this behaviour ...
I was checking a friend's code, and this pattern showed up quite a bit whenever he wrote functions that returned a boolean value: def multiple_of_three(n): if (n % 3) is 0: return True else: return False I maintain that it's simpler (and perhaps a bit faster) to write: def multiple_of_three(n): return (n % 3...
I'm finding a great many people buy my Android app in the google market and immediately return it for a refund. That works fine with physical goods, but for virtual goods, they have now acquired the app for free! Has anyone else noticed this fatal flaw in the Google Android market for apps? What other markets are there without this p...
We use __toString() to returning class's default value like that: <?php class my { public function __toString() { return "asdasd"; } } ?> It returns only string type. But I want to return resource type: <?php class my { public function __toString() { return imagecreatefromjpeg("image.jpg"); } } ?> ...