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What is a postback?

... When does it happen? A postback originates from the client browser. Usually one of the controls on the page will be manipulated by the user (a button clicked or dropdown changed, etc), and this control will initiate a postback. The state of this control, plus all other controls on the page,(know...
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How do I force a favicon refresh?

I have a Grails application running locally using its own tomcat and I have just changed the favicon for a new one. Problem is that I can not see it in any browser. The old favicon shows up or I get no favicon at all, but not my new one. I do not think this is a Grails issue per se, more an issue...
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Prefer composition over inheritance?

... Prefer composition over inheritance as it is more malleable / easy to modify later, but do not use a compose-always approach. With composition, it's easy to change behavior on the fly with Dependency Injection / Setters. Inheritance is more rigid as most languages do not allo...
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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference

Given the following examples, why is outerScopeVar undefined in all cases? 6 Answers ...
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How to get record created today by rails activerecord?

How should I write the conditional statement for when I want to get all the records which were created today? 10 Answers ...
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How to unmount a busy device

...ared drives (from a SQL table) and mount them in a special directory where all users can access them. 11 Answers ...
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Remove outline from select box in FF

... I found a solution, but it is mother of all hacks, hopefully it will serve as a starting point for other more robust solutions. The downside (too big in my opinion) is that any browser that doesn't support text-shadow but supports rgba (IE 9) won't render the text ...
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What is 'Context' on Android?

...ect. It lets newly-created objects understand what has been going on. Typically you call it to get information regarding another part of your program (activity and package/application). You can get the context by invoking getApplicationContext(), getContext(), getBaseContext() or this (when in a cl...
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Default initialization of std::array?

...rantee that the syntax std::array<T, N> x; will default-initialize all the elements of the array ? 5 Answers ...
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How to modify a specified commit?

I usually submit a list of commits for review. If I have the following commits: 16 Answers ...