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Gesture recognizer and button actions

...nizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { // Disallow recognition of tap gestures in the segmented control. if ((touch.view == yourButton)) {//change it to your condition return NO; } return YES; } hope it will help Edit As Daniel noted you must con...
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jQuery: checking if the value of a field is null (empty)

...ype]').val().length != 0){} If you want to check if the element exist at all, you should do that before calling val: var $d = $('#person_data[document_type]'); if ($d.length != 0) { if ($d.val().length != 0 ) {...} } s...
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What is the difference between `after_create` and `after_save` and when to use which?

... readers should note that, according to the docs, ActiveRecord's update_all does not invoke any callbacks, including after_* – user2426679 Jan 10 at 19:34 add a comment ...
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What is a Windows Handle?

... ardila 1,19211 gold badge1111 silver badges2323 bronze badges answered May 24 '09 at 3:09 Dan MouldingDan Mouldin...
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C++, Free-Store vs Heap

Dynamic allocations with new/delete are said to take place on the free-store , while malloc/free operations use the heap . I'd like to know if there is an actual difference, in practice. Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc ) ...
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Android Calling JavaScript functions in WebView

... Community♦ 111 silver badge answered Dec 2 '10 at 0:43 user163757user163757 6,08588 gold ...
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Join strings with a delimiter only if strings are not null or empty

... .filter(Boolean) (which is the same as .filter(x => x)) removes all "falsy" values (nulls, undefineds, empty strings etc). If your definition of "empty" is different, then you'll have to provide it, for example: [...].filter(x => typeof x === 'string' && x.length > 0) wi...
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Git interactive rebase no commits to pick

... pushed for your second question: have a branch with your changes (basically a configuration branch) and regularly merge the other branches into it. this way the changes will not move to other branches share | ...
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Adding an arbitrary line to a matplotlib plot in ipython notebook

... gcalmettesgcalmettes 6,99611 gold badge2626 silver badges2828 bronze badges ...
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How do you increase the max number of concurrent connections in Apache?

...ts 200 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 First of all, whenever an apache is started, it will start 2 child processes which is determined by StartServers parameter. Then each process will start 25 threads determined by ThreadsPerChild parameter so this means 2 process can se...