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Check if a string is null or empty in XSLT

... | edited Jan 10 '18 at 10:33 bluish 22k2222 gold badges107107 silver badges163163 bronze badges ...
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Deep null checking, is there a better way?

... answered Jan 17 '10 at 16:38 Eric LippertEric Lippert 599k164164 gold badges11551155 silver badges20142014 bronze badges ...
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How to determine whether a Pandas Column contains a particular value

... Kirk Kittell 10811 silver badge77 bronze badges answered Nov 4 '16 at 18:41 ffeastffeast 8,...
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?

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On localhost, how do I pick a free port number?

... Bind the socket to port 0. A random free port from 1024 to 65535 will be selected. You may retrieve the selected port with getsockname() right after bind(). share | improve t...
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How to define a two-dimensional array?

... 1039 You're technically trying to index an uninitialized array. You have to first initialize the o...
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What's the syntax for mod in java

...ven = (a%2)==0, – Steve Kuo Jul 28 '10 at 15:12 60 Careful with the terms mod and modular because...
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@ character before a function call

... answered Jan 4 '10 at 22:08 solidgumbysolidgumby 2,23411 gold badge1414 silver badges66 bronze badges ...
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How can I calculate the difference between two dates?

How can I calculate the days between 1 Jan 2010 and (for example) 3 Feb 2010? 9 Answers ...
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std::string formatting like sprintf

...o do it first in a c-string, then copy it into a std::string: char buff[100]; snprintf(buff, sizeof(buff), "%s", "Hello"); std::string buffAsStdStr = buff; But I'm not sure why you wouldn't just use a string stream? I'm assuming you have specific reasons to not just do this: std::ostring...