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Does every Javascript function have to return a value?

...ow level, the return is translated into some sort of jump. If a function really returned nothing at all, there would be no way of knowing what and when to call the next function, or to call event handlers and the like. So to recap: No, a JS function needn't return anything as far as your code goes....
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What is the difference between integration testing and functional testing? [closed]

...your system or the database interacts with your data abstraction layer. Usually this requires an fully installed system, although in its purest forms it does not. Functional testing is when you test the system against the functional requirements of the product. Product/Project management usually wr...
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How to calculate the number of days between two dates? [duplicate]

... Warning: not all days are 24 hours long. If your date range spans a daylight saving change, you'll lose or gain an hour (typically). Use Math.round() on the result (avoid floor or ceil). – Mark Sep 2...
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What is `mt=8` in iTunes links for the App Store?

... @FabianFernandez See here. Its all about affiliation -- stackoverflow.com/questions/17437785/… – Anindya Sengupta Aug 8 '14 at 15:04 ...
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check if a std::vector contains a certain object? [duplicate]

Is there something in <algorithm> which allows you to check if a std:: container contains something? Or, a way to make one, for example: ...
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Android accelerometer accuracy (Inertial navigation)

... It's quite different to the old manually-take-some-pictures-then-stitch-them-later job. It does track its position in real time somehow. It's a little difficult to explain without demonstrating it. You don't have to take pictures manually - the phone decides...
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Version of Apache installed on a Debian machine

How can I check which version of Apache is installed on a Debian machine? 17 Answers ...
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Does Haskell require a garbage collector?

... the user types "clear"; so the lifetime of this must be determined dynamically, and this is why dynamic memory management is necessary. So in this sense, automated dynamic memory allocation is necessary, and in practice this means: yes, Haskell requires a garbage collector, since garbage collectio...
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How to use a link to call JavaScript?

How to use a link to call JavaScript code? 9 Answers 9 ...
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How do I alter the position of a column in a PostgreSQL database table?

...o ensure data consistency and that would certainly apply to pg_dump. After all, what's the point of doing db backups if the restore is borked? – Dana the Sane Nov 13 '08 at 23:41 ...