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Double not (!!) operator in PHP

...ings or empty arrays) you will get the boolean value FALSE. It is functionally equivalent to a cast to boolean: return (bool)$row; share | improve this answer | follow ...
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How to empty a list in C#?

... It's really easy: myList.Clear(); share | improve this answer | follow | ...
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?

... the body or individual elements? It seems to improve scroll events drastically. 5 Answers ...
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How to make a window always stay on top in .Net?

...s app that runs a macro in another program. The other program will continually pop up windows and generally make things look, for lack of a better word, crazy. I want to implement a cancel button that will stop the process from running, but I cannot seem to get the window to stay on top. How do I...
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Why functional languages? [closed]

...onal languages. In some cases, this can make code more readable. Traditionally, one of the big disadvantages of functional programming was also the lack of side effects. It's very difficult to write useful software without IO, but IO is hard to implement without side effects in functions. So most p...
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Git status - is there a way to show changes only in a specific directory?

...rectory> , but it seems this does something completely different (lists all changed files, as they would be if I wrote git add <directory> first). ...
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Can Java 8 code be compiled to run on Java 7 JVM?

... No, I don't think it will. Java has a small share of the desktop market, but keeps that little share in a pretty tight grip. But it does hamper the adoption of new versions and features. I will not be able to use Java 8 features in the code I write for quite some t...
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Proper way to add svn:executable

... Sorry for all the edits, but if I recall correctly, having it set to anything will turn on the executable bit, deleting it (and possibly setting it to null or whitespace) will turn it off. To get the value your SVN client was using, a...
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master branch and 'origin/master' have diverged, how to 'undiverge' branches'?

Somehow my master and my origin/master branch have diverged. I actually don't want them to diverge. 13 Answers ...
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What REALLY happens when you don't free after malloc?

... Just about every modern operating system will recover all the allocated memory space after a program exits. The only exception I can think of might be something like Palm OS where the program's static storage and runtime memory are pretty much the same thing, so not freeing mig...