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What is the difference between exit and return? [duplicate]
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return returns from the current function; it's a language keyword like for or break.
exit() terminates the whole program, wherever you call it from. (After flushing stdio buffers and so on).
The only case when both do (nearly) the same thing is in the main() function, as a return from...
How can I add a custom HTTP header to ajax request with js or jQuery?
Does anyone know how to add or create a custom HTTP header using JavaScript or jQuery?
9 Answers
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What is the best way to force yourself to master vi? [closed]
A good while ago, I read an article by the creator of viemu , clearing up a lot of the misconceptions about vi, as well as explaining why it's a good idea (and why it's been very popular for the last 30 years+). The same guy also has a great set of graphical cheat sheets that teach the basics a f...
Why doesn't Dictionary have AddRange?
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A comment to the original question sums this up pretty well:
because no one ever designed, specified, implemented, tested, documented and shipped that feature. - @Gabe Moothart
As to why? Well, likely because the behavior of merging dic...
Why does typeof NaN return 'number'?
...avascript but common computer science principle.
From http://en.wikipedia.org/wiki/NaN:
There are three kinds of operation
which return NaN:
Operations with a NaN as at least one operand
Indeterminate forms
The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−...
javac is not recognized as an internal or external command, operable program or batch file [closed]
I am experiencing an error while trying to compile Java programs.
6 Answers
6
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Why is there no logical xor in JavaScript?
Why is there no logical xor in JavaScript?
19 Answers
19
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How to group time by hour or by 10 minutes
...RT(MINUTE, DT.[Date]) / 5),0,1) * 5, so that when I look at the data it's correlated with the nearest time slot
– hdost
Aug 3 '15 at 15:46
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How is a CRC32 checksum calculated?
...ybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
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When should null values of Boolean be used?
...me you can. This will avoid many NullPointerExceptions and make your code more robust.
Boolean is useful, for example
to store booleans in a collection (List, Map, etc.)
to represent a nullable boolean (coming from a nullable boolean column in a database, for example). The null value might mean "...