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How to check for an undefined or null variable in JavaScript?
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How do I handle ImeOptions' done button click?
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Difference between string object and string literal [duplicate]
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In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
...ift you can still use the "#if/#else/#endif" preprocessor macros (although more constrained), as per Apple docs. Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Ot...
In Python, what is the difference between “.append()” and “+= []”?
...bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import timeit
>>> timeit.Timer('s.append("something")', 's = []').timeit()
0.20177424499999999
>>> timeit.Timer('s += ["something"]', 's = []').timeit()
0.41192320500000079
Py...
How to convert DOS/Windows newline (CRLF) to Unix newline (LF) in a Bash script?
... # Unix to DOS
However, if you're going to have to do this very often (more than once, roughly speaking), it is far more sensible to install the conversion programs (e.g. dos2unix and unix2dos, or perhaps dtou and utod) and use them.
If you need to process entire directories and subdirectories,...
Disable same origin policy in Chrome
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Is there a REAL performance difference between INT and VARCHAR primary keys?
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How to read data when some numbers contain commas as thousand separator?
...ead.csv() decide and then converting those that in cols 15:41 may get you 'more' numeric columns.
– Dirk Eddelbuettel
Oct 6 '09 at 11:40
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Are the shift operators () arithmetic or logical in C?
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