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Find MongoDB records where array field is not empty
...After some more looking, especially in the mongodb documents, and puzzling bits together, this was the answer:
ME.find({pictures: {$exists: true, $not: {$size: 0}}})
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Split string on the first white space occurrence
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I liked this quite a bit and it works fine but performance wise it's pretty bad to the most upvoted "substring" solution. just tested it and it's about 10x slower.
– pootzko
Sep 8 '16 at 12:54
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How to do a simple file search in cmd
... to quickly search for a file given its name or part of its name, from the windows command line (not power shell). This is similar to opening explorer and using the search box at the top.
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Is XSLT worth it? [closed]
...dying language (the amount of work I get tells me that). Right now, it's a bit 'stuck' until Microsoft finish their (very late) implementation of XSLT 2. But it's still there and seems to be going strong from my viewpoint.
s...
How do I test a private function or a class that has private methods, fields or inner classes?
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@Eponymous I'm a bit torn on this one. The object oriented purist in me would say the you should use an object oriented approach rather than static private methods, allowing you to test via public instance methods. But then again, in a scient...
Using .NET, how can you find the mime type of a file based on the file signature not the extension
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not working well for 64 bit apps, look here instead:stackoverflow.com/questions/18358548/…
– omer schleifer
Aug 11 '15 at 12:28
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Regex for password must contain at least eight characters, at least one number and both lower and up
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Good,but little bit mistakes.It also accepting Space which is not valid password if we use space.
– Dinesh.net
Jul 5 '16 at 11:44
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How do I count the number of occurrences of a char in a String?
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(I'm not even sure where the "stack" bit of the comment comes from. It's not like this answer is my recursive one, which is indeed nasty to the stack.)
– Jon Skeet
Nov 29 '09 at 14:51
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std::unique_ptr with an incomplete type won't compile
...t solution, but sometimes you may use shared_ptr instead.
If course it's a bit an overkill, but... as for unique_ptr, I'll perhaps wait 10 years more until C++ standard makers will decide to use lambda as a deleter.
Another side.
Per your code it may happen, that on destruction stage window_impl wi...
What does the 'b' character do in front of a string literal?
...ding on encoding.
If took 1 byte with a byte string, you'd get a single 8-bit value from 0-255 and it might not represent a complete character if those characters due to encoding were > 1 byte.
TBH I'd use strings unless I had some specific low level reason to use bytes.
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