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jQuery delete all table rows except first

...on, queries using :gt() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in modern browsers, use $("your-pure-css-selector").slice(index) instead. I would recommend using $("#mytable > tr").slice(1).remove(); ...
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What is Rack middleware?

...of rack is a simple convention. Every rack compliant webserver will always call a call method on an object you give him and serve the result of that method. Rack specifies exactly how this call method has to look like, and what it has to return. That's rack. Let's give it a simple try. I'll use WEB...
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When should we call System.exit in Java

...n't) be aware of each other. Then, if someone wants to quit, he can simply call System.exit(), and the shutdown hooks (if properly set up) take care of doing all necessary shutdown ceremonies such as closing files, releasing resources etc. "This method never returns normally." means just that the m...
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How to call a PHP function on the click of a button

I have created a page called functioncalling.php that contains two buttons, Submit and Insert . 12 Answers ...
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Java: int array initializes with nonzero elements

...zeroing of allocated array. This bug is placed in Oracle bug tracker (bug id 7196857). Unfortunately, I did not wait for any clarifications from Oracle about the following points. As I see, this bug is OS-specific: it absolutely reproducible on 64-bit Linux and Mac, but, as I see from comments, it ...
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Does “git fetch --tags” include “git fetch”?

...ny better? Looking at the source briefly I think it may make only a single call - but I'm not totally sure if it'll grab the not-on-branch tags. Honestly I don't know if I've ever seen any tags not on a branch. With the things I pull from, the only way that'd happen if I waited so long that I missed...
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PHP function overloading

... you might be able to achieve what you want, would be to make use of the __call magic method: class MyClass { public function __call($name, $args) { switch ($name) { case 'funcOne': switch (count($args)) { case 1: ...
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Understanding how recursive functions work

...the confusion is stemming from thinking of it as "the same function" being called many times. If you think of it as "many copies of the same function being called", then it may be clearer: Only one copy of the function ever returns 0, and it's not the first one (it's the last one). So the result of...
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What is the benefit of using Fragments in Android, rather than Views?

...nteraction between fragments. I have split screen Fragmentactivity i can call it with 'Intent Extras' and tell to fragmentActivity which fragment are to be loaded. Fragments are good because they are not in manifest so you could make reusable fragments and FragmentActvity. But it make your proje...
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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?

...it can be written as "r1..r2". A similar notation "r1...r2" is called symmetric difference of r1 and r2 and is defined as "r1 r2 --not $(git merge-base --all r1 r2)". It is the set of commits that are reachable from either one of r1 or r2 but not from both. Which basica...