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How can I check a C# variable is an empty string “” or null? [duplicate]

... @Lion Liu: Actually I think PHP has exactly as much to offer. See: php.net/manual/en/function.empty.php – Milan Feb 2 '16 at 20:09 ...
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Does C++ support 'finally' blocks? (And what's this 'RAII' I keep hearing about?)

Does C++ support ' finally ' blocks? 16 Answers 16 ...
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What is the difference between statically typed and dynamically typed languages?

I hear a lot that new programming languages are dynamically typed but what does it actually mean when we say a language is dynamically typed vs. statically typed? ...
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Difference between array_push() and $array[] =

In the PHP manual, ( array_push ) says.. 9 Answers 9 ...
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Is it possible to preview stash contents in git?

...shows the last tone, 1 the second last one.. etc. git stash list will show all the available. – brita_ Jul 18 '14 at 21:13 7 ...
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Perform .join on value in array of objects

...Array.prototype.map is what you're looking for if you want to code functionally. [ {name: "Joe", age: 22}, {name: "Kevin", age: 24}, {name: "Peter", age: 21} ].map(function(elem){ return elem.name; }).join(","); In modern JavaScript: [ {name: "Joe", age: 22}, {name: "Kevin", age: 2...
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Get the first N elements of an array?

... Use array_slice() This is an example from the PHP manual: array_slice $input = array("a", "b", "c", "d", "e"); $output = array_slice($input, 0, 3); // returns "a", "b", and "c" There is only a small issue If the array indices are meaningful to you, remember that ar...
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counting number of directories in a specific directory

... can instead test the directory's children and do not descend into them at all: $ find .vim/* -maxdepth 0 -type d .vim/after .vim/autoload .vim/bundle .vim/colors .vim/compiler .vim/doc .vim/ftdetect .vim/ftplugin .vim/indent .vim/plugin .vim/syntax $ find .vim/* -maxdepth 0 -type d | wc -l 11 $ f...
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how to set textbox value in jquery

... I think you want to set the response of the call to the URL 'compz.php?prodid=' + x + '&qbuys=' + y as value of the textbox right? If so, you have to do something like: $.get('compz.php?prodid=' + x + '&qbuys=' + y, function(data) { $('#subtotal').val(data); }); Reference: get...
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Why are dates calculated from January 1st, 1970?

...1st, 1970) as default standard The Question makes two false assumptions: All time-tracking in computing is done as a count-since-1970. Such tracking is standard. Two Dozen Epochs Time in computing is not always tracked from the beginning of 1970 UTC. While that epoch reference is popular, various...