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How do I simulate a hover with a touch in touch enabled browsers?

...htly and adding some JS. Using jQuery to make it easy: $(document).ready(function() { $('.hover').on('touchstart touchend', function(e) { e.preventDefault(); $(this).toggleClass('hover_effect'); }); }); In english: when you start or end a touch, turn the class hover_effec...
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Which is faster : if (bool) or if(int)?

... (specifically -O3), here's what I get: For f(): .type _Z1fi, @function _Z1fi: .LFB0: .cfi_startproc .cfi_personality 0x3,__gxx_personality_v0 cmpl $1, %edi sbbl %eax, %eax andb $58, %al addl $99, %eax ret .cfi_e...
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Creating an abstract class in Objective-C

...stringWithFormat:@"%s must be overridden in a subclass/category", __PRETTY_FUNCTION__] userInfo:nil] #define methodNotImplemented() mustOverride() then in your methods you can use this - (void) someMethod { mustOverride(); // or methodNotImplemented(), same thing } Notes: Not sure if maki...
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Purpose of Trigraph sequences in C++?

...teral won't get interpreted as a digraph. For a nice education on various fun with punctuation in C/C++ programs (including a trigraph bug that would defintinely have me pulling my hair out), take a look at Herb Sutter's GOTW #86 article. Addendum: It looks like GCC will not process (and will w...
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Validating parameters to a Bash script

... as a commentar). i did "$#" to fix it. second, the regex also matches "foo123bar". i fixed it by doing ^[0-9]+$. you may also fix it by using grep's -x option – Johannes Schaub - litb Mar 31 '09 at 1:21 ...
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Why doesn't os.path.join() work in this case?

... David WoleverDavid Wolever 123k7676 gold badges297297 silver badges462462 bronze badges ...
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How to automatically add user account AND password with a Bash script?

... 123 You can run the passwd command and send it piped input. So, do something like: echo thePassw...
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HTML5: number input type that takes only integers?

... This is important to accept float numbers and repeat . only once, e.g. 123.556 can be writen. – Tarek Kalaji Jan 28 '17 at 15:54 9 ...
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?

...han k time if it's not there Supports ordered traversal No need for a hash function Deletion is straightforward New operations: You can quickly look up prefixes of keys, enumerate all entries with a given prefix, etc. Advantages of linked structure: If there are many common prefixes, the spa...
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Can two applications listen to the same port?

... iptables -m statistic --mode random --probability 0.5 is fun. – Jed Smith Nov 7 '09 at 21:27 1 ...