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• Is this the right way to setup up an image within a link?

  - by fire

  $('<a />').attr({ 'href': '#' }) .append( $('<img />').attr({ 'id' : 'img', 'src' : 'edit.png' })) .appendTo('body'); Is the the "right way" to go about adding <a href="#"><img src="edit.png" id="img" /></a> to the body? Also how would I add some css onto the img?

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• input type=image width being ignored

  - by kastulo

  im making an image button like this: <input type="image" src="red.jpeg" width="150px"> but it is displaying the original image size which is much larger, if i put: <img src="red.jpeg" width="150px"> it displays the image 150px wide as i want, what do you guys think is the problem with this? I have tried styling it with a class and CSS but not working either, please help me with this, im going nuts!!

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• if i want to build logger class in c++ or java what should it be singletone or static

  - by user63898

  Hello all general question is i like to build logger class that writes to single log file from different classes in my application what should the logger class be singletone or static class

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• Better way to write this ?

  - by atif089

  any better way to write this ? $(this).parent().parent().find(" dd ul").toggle(); update.. I am trying to create a dropdown using the script here http://www.jankoatwarpspeed.com/post/2009/07/28/reinventing-drop-down-with-css-jquery.aspx however the script works only for one instance of list and my code works good for multiple instances. Just curious if there is another better way to get parent of a parent in jQuery

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• C++ shared objets

  - by Klaus

  Hello, I have got four classes A, B, C and D. Class A has a member b of class B. Class B has a member c of class C. A has a member D* dpointer; This hierarchy has to be preserved (in fact this is a GUI with app, window, panel as A, B and C). Now B and C must use a method from *dpointer. Is there something more elegant than giving dpointer as a member of B and C ?

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• One log4j.xml - many scripts

  - by psed

  One of my utility jar files is used by different nix scripts, located in different categories. Problem: unable to initialize log4j framework (unable to find log4j.xml). Solution, that allows to configure logger correctly while launching jar classes by different scripts - usage of env vars and force configuring using DOMConfigurtor.configure(pathToConfXml) method. is it possible to avoid path hardcoding and configure logger inside of a script? Appreciate all your help. Thanks.

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• What pitfalls (if any) are there to learning C/C++ as a first language?

  - by thyrgle

  Hi, I first learned C++ then moved to C (I know kind of backwards) and then I found a thing called iTunes U and began watching programming classes to extend my knowledge and noticed that Stanford and MIT both did not teach C or C++ as an introduction to computer programming. Then I began to wonder why they didn't begin teaching C/C++ because I thought C/C++ was more efficient than Java (which Stanford taught) and Python (which MIT taught). Or maybe there is no particular reason?

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• Is it possible for an abstract class to force it's children to have a constructor in PHP?

  - by Logan Serman

  I would like to do something like this: abstract class Foo { public function __construct() { echo 'This is the parent constructor'; } abstract function __construct(); } class Bar extends Foo { // constructor is required as this class extends Foo public function __construct() { //call parent::__construct() if necessary echo 'This is the child constructor'; } } But I get a fatal error when doing this: Fatal error: Cannot redeclare Foo::__construct() in Foo.php on line 8 Is there another way to ensure child classes have a constructor?

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• Can a trait state if a C++ class has a default constructor?

  - by Vicente Botet Escriba

  Traits classes can be defined to check if a C++ class has a member variable, function or a type (see here). Curiously, the ConceptTraits do not include traits to check if a C++ class defines a default constructor or given constructor? Can traits be used to check the constructor presence? If yes, how? If not, why it is not possible?

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• if i call an interface method will it get the method body from implementation class and execute ?

  - by sij

  please forgive me if i am wrong: I have an interface Interface1 I have its implementation Imple implements Interface (all methods hav been implemented :) ) now consider a third class CheckCall can I do a call in the class CheckCall like I mention below Interface1 interface1; interface1.method(); all necessary imports have been done. Please tell me is it possible or not , if not then ok and if yes then tell me what will happen if i have more than one impl classes for the same interface and i am doing the same call.

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• Beginning PHP for someone interested in Security

  - by MaXX

  I'd like to learn PHP specifically for dealing with security vulnerabilities/exploits. Could someone recommend a book? I don't know if I need to learn HTML/CSS/XML/XHTML etc, do I have to learn those too? I don't really plan on designing websites, could anyone help me with this? :P

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• How to check font-size in IE6+

  - by kumarsfriends

  Hi All, I am wondering is there any way we can test the font size/color of a webpage in IE6+. I think it is not possible by checking the css class, as some other style may overwrite the styles of the class which has been assinged to that text. Actually I want to know the browser assigned font-size to the text of the page, as we can do it in firebug on firefox. Any help would be appreciated.

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• Business object and linq2SQL

  - by Overdose

  What is the optimal way to write the code which interacts with DB using linq2SQL? I need to add some business logic to the entities. So I guess there are two ways: Write some wrapper class. The main minus is that many fields are the same, so i don't feel it as DRY style. Add business logic methods to linq2sql entities(these classes are partial) directly ???

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• prevent default hover

  - by meo

  I try to prevent the Browser from using the :hover effect of the CSS. $("ul#mainFilter a").hover( function(o){ o.preventDefault(); ...do my stuff... }, function(o){ o.preventDefault(); ...do my stuff... }); I tired it with return false; to but it does not work. Does anyone know how to do this?

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• Open a div at place clicked

  - by Sarah

  Hello, I have a rather simple question but i can't seem to find an answer to it. I want when i click on any place on web page a div is opened. how can i accomplish that CSS style. Thanks.

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• Initiatives to namespace PHP core and libraries

  - by James Maroney

  With the introduction of Object-Oriented and Namespacing capabilities in PHP, I am loving the new found cleanliness of PHP code that can be produced. The annoying thing though is that the core of PHP is still cluttered, unorganized mess of functions. Are there any initiatives to organize the PHP core and "common" libraries into namespaces and classes?

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• Why does Joomla not use private, public and protected keywords?

  - by jax

  I noticed that Joomla uses less secure var type for variables in classes Why is this? In my own components,plugins,modules should I follow this convention or use a more secure private, public and protected keywords.

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• C++ how position indpendent code works for virtual function calls and more..?

  - by 0xDEAD BEEF

  How does PIC work for shared libraries which use virtual classes (ARM?). Is there any workaround so that i can access programm class object from shared library or vice versa?

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• What are the differences between various threading synchronization options in C#?

  - by user38834

  Can someone explain the difference between: lock (someobject) {} Using Mutex Using Semaphore Using Monitor Using Other .Net synchronization classes I just can't figure it out. It seems to me the first two are the same?

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• Is it the best practice to extract an interface for every class?

  - by the_drow

  I have seen code where every class has an interface that it implements. Sometimes there is no common interface for them all. They are just there and they are used instead of concreate objects. They do not offer a generic interface for two classes and are specific to the domain of the problem that the class solves. Is there any reason to do that?

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• Why do we make a copy of final instance variable in a method in Java?

  - by PRK

  For instance: private final Object o; public void doSomething(){ final Object local = this.o; //access methods of local; } This practice is followed in lots of java classes (such as ArrayBlockingQueue). What's the benefit of this?

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• Where exactly must I create the fr.lproj localization file, for example?

  - by mystify

  Do you put it in "Other Resources"? Or "Resources-iPhone"? Or even in the Classes group? Or in the root of the project? What's the recommended place?

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• When should I consider representing the table-id ...?

  - by JMSA

  When should I consider representing the table-id columns as classes? When should I consider storing data as comma-separated values in a column in a DB table rather than storing them in different columns?

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• Using C++ from Objective C : how to allocate/deallocate?

  - by Dmitri Nesteruk

  Currently, my Objective C classes use C++ objects by doing a new when the owner is created, and calling delete when it is destroyed. But is there another way? I'd like to be able to declare, say, an auto_ptr whose scope lasts the duration of the Objective C class' lifetime.

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• Any reasons not to gzip?

  - by Haroldo

  I remember someone telling me that gzipped content is not cached on some browsers? is this true? Are there any other reasons why I shouldn't gzip my content (pages, javascript and css files) with htaccess?

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