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Javascript - removing undefined fields from an object [duplicate]

... You actually don't even need the ternary operator. Instead you can do (obj[key]===undefined&& delete obj[key]) The reason this works is because and uses short-circuit evaluation, so once the first check fails the second isn'...
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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?

... answered Nov 1 '10 at 16:11 Flexo♦Flexo 79.5k2222 gold badges173173 silver badges253253 bronze badges ...
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Setting Windows PowerShell environment variables

...t finds in the WindowsPowerShell directory under My Documents folder. Typically you have a profile.ps1 file already there. The path on my computer is C:\Users\JaredPar\Documents\WindowsPowerShell\profile.ps1 share ...
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How can I selectively merge or pick changes from another branch in Git?

I'm using Git on a new project that has two parallel -- but currently experimental -- development branches: 25 Answers ...
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XAMPP - Port 80 in use by “Unable to open process” with PID 4! 12

...RVER)" also uses port 80 and so it should be stopped if MS-SQL sever is insalled on your machine. – johnkarka Nov 21 '15 at 12:01 1 ...
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Calculate distance between 2 GPS coordinates

... | edited Mar 11 at 18:17 Federico klez Culloca 21.2k1515 gold badges5252 silver badges8787 bronze badges ...
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Captured variable in a loop in C#

...ompiler is generating a class that represents the closure for your method call. It uses that single instance of the closure class for each iteration of the loop. The code looks something like this, which makes it easier to see why the bug happens: void Main() { List<Func<int>> actio...
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How to open a new window on form submit

... KonstantinosKonstantinos 11.8k99 gold badges4646 silver badges5858 bronze badges ...
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How can I index a MATLAB array returned by a function without first assigning it to a local variable

... It actually is possible to do what you want, but you have to use the functional form of the indexing operator. When you perform an indexing operation using (), you are actually making a call to the subsref function. So, even though ...
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The default for KeyValuePair

... Andrew HareAndrew Hare 310k6363 gold badges611611 silver badges614614 bronze badges 5 ...