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Who is calling the Java Thread interrupt() method if I'm not?

...ly should not call System.exit(). (Your application does not necessarily know why it was interrupted, and it certainly does not know if there are other threads that need to be interrupted by the framework.) On the other hand, if your code is not designed to run under the control of some framewor...
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How to find the size of localStorage

...n("\n")); P.S. Snippets are updated according to request in the comment. Now the calculation includes the length of the key itself. Each length is multiplied by 2 because the char in javascript stores as UTF-16 (occupies 2 bytes) P.P.S. Should work both in Chrome and Firefox. ...
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SQLite UPSERT / UPDATE OR INSERT

... For now, no this release in Ubuntu repository yet. – bl79 Jun 9 '18 at 20:21 ...
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Checking if form has been submitted - PHP

... Ideally now you should use if (null !== (filter_input(INPUT_POST, 'macaddress'))){ which gets you in the habit of using filter_input – depicus Feb 20 '15 at 9:46 ...
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How to change the commit author for one specific commit?

... If you don't know what editor you're in, the answer is likely vim. To save and quit, type Esc : w q Enter. On the other hand, if it's Nano and you see things like "WriteOut: ^O" along the bottom, then you should use Ctrl+O, Enter, Ctrl+X i...
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Using global variables in a function

...bal variables are so dangerous, Python wants to make sure that you really know that's what you're playing with by explicitly requiring the global keyword. See other answers if you want to share a global variable across modules. ...
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Explanation of [].slice.call in javascript?

...ray, then iterate through the object it's running on (originally an array, now a NodeList) and keep appending the elements of that object to the empty array it created, which is eventually returned. Here's an article on this. EDIT: So it starts with an empty array [], then slice is used to co...
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Why is rbindlist “better” than rbind?

... rbindlist is an optimized version of do.call(rbind, list(...)), which is known for being slow when using rbind.data.frame Where does it really excel Some questions that show where rbindlist shines are Fast vectorized merge of list of data.frames by row Trouble converting long list of data.fra...
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Best way to merge two maps and sum the values of same key?

... The shortest answer I know of that uses only the standard library is map1 ++ map2.map{ case (k,v) => k -> (v + map1.getOrElse(k,0)) } share | ...
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When do we have to use copy constructors?

I know that C++ compiler creates a copy constructor for a class. In which case do we have to write a user-defined copy constructor? Can you give some examples? ...