in the following code ( taken from effective C++ ): class A { .... .... .... char& operator[](std::size_t position) // now just calls const op[] { return const_cast<char&>( // cast away const on // op[]'s return type; static_ca...
I'm having a problem with the this pointer inside of a custom class. My code looks as follows. class Foo(){ public: void bar(); bool baz(); }; bool Foo::baz(){ return true; } void Foo::bar(){ bool is_baz = (*this).baz(); } As I said above, I believe the error I'm getting (LNK2019) is coming from the this. I think it is l...
------------ ------------ | TclObjct | | Handler | ------------ ------------ |__________________________________| | -------------- ...
I have some sample code that looks like this: var myDrawingArea = new DrawingArea(document.getElementById("drawing_canvas")); function DrawingArea(aCanvas) { this.brushSize = 2; this.buildToolbar = (function () { $("#brush-size") .slider({ value: this.brushSize, // this is DrawingArea insta...
how can i get for example all links inside a all ready selected jquery element (this) $("#container li").each(function(){ $("this a").each(function(){ // links inside this li element }); }); This does not work is there a other way? ...
hi guys, I'm having some trouble with JavaScript and the passing of a function as parameter of another function. let's say we are inside a class and do something like that: this.get('target').update(this.onSuccess, this.onFail); 'target' is a JavaScript-object that has a method called update() I'm calling this method and pass tow me...
Theory: One of the things that appeals to me about node.js is using it as a command line tool. In theory, I can write libraries in Javascript and place them in my ~/.node_libraries directory, and then then I can reuse those libraries. So for instance, I have a text.js in ~/.node_libraries, and it has a bunch of text-related function...
I've seen a bunch of examples but can't seem to get some sample code to work. Take the following code: var test = (function(){ var t = "test"; return { alertT: function(){ alert(t); } } }()); and I have a function on window.load like: test.alertT(); That all works fine. However, when I try...
Is the following code safe? (I already know it compiles properly.) void Tile::clear() { *this = Tile(); } int main() { Tile mytile; mytile.clear(); } ...
Is there a way in a C# static method to refer to the Type the method is defined in? In an instance method you can determine the type by: public void Foo() { Type type = this.GetType(); } how would it look like in a static method? public static void Bar() { Type type = ....? } Update: Sorry, clarification needed: I know the...
I was wondering if there is a shorter, better or cleaner way to assign and use class variables in PHP, then through $this->instance_variable ? class Bar { # internal variables var $foo = "Hello World"; public function foo() { return $this->foo; } } I am not very familiar with all PHP's variable scoping, but from what I u...
I have a function which is a JQuery event handler. Because it is a JQuery event handler, it uses the this variable to refer to the object on which it is invoked (as is normal for that library). Unfortunately, I need to manually call that method at this point. How do I make this inside the called function behave as if it were called from...
I'm trying to use jQuery's $(this) inside of Fancybox's onComplete event, but I'm running into trouble. Here's my javascript code: $('a.iframe').fancybox({ centerOnScroll: true, onComplete: function(){ var self = $(this); var title = self.title; alert(title.text()); } }); I have simplified the code abo...
I'd like to avoid (most of the) warnings of Netbeans 6.9.1, and I have a problem with the 'Leaking this in constructor' warning. I understand the problem, calling a method in the constructor and passing "this" is dangerous, since "this" may not have been fully initialized. It was easy to fix the warning in my singleton classes, because...
I've made a class that acts like an file wrapper. When user call delete method, i want to unset the object (actually $this). Is there a way (workaround) to do that? The manual said no, there is no way... ...
I'm trying to have some object oriented design using JS and jQuery. I have the following construstor: function A () { this.url = "some url"; $("rrr").autocomplete({ source: function(req, add){ $.getJSON(this.url, req, function(data) {} ... } As you guessed, I can't use this.url, since jQuery redefienes this. I can't u...
I recently was working on a little python project and came to a situation where I wanted to pass self into the constructor of another object. I'm not sure why, but I had to look up whether this was legal in python. I've done this many times in C++ and Java but I don't remember ever having to do this with python. Is passing references to...
I am getting a hang of OOP and finally started creating them in my scripts. One thing I don't get it is the "$this" after creating an instance of class. For example, this guy coded: class Form { protected $inputs = array(); public function addInput($type, $name) { $this->inputs[] = array("type" => $type, "name" => ...
Edit: I have to apologize, the problem I posted about actually does not exist in the code I posted, because I oversimplified it. I'll try to post something later. Deletion would also be ok, but there are too many answers at present, so I cannot do it myself. Edit2: Ok, here goes: Let, function F() { this.field = "value" ; v...
I'm using the prototype javascript libraries. My code is below. I've created a class and in that class I have created an event listener for one of the class methods. In that method I need to access both the attributes of the form element that triggers the event and the class properties. Currently, the code understands $(this).getValue...