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Which is better option to use for dividing an integer number by 2?
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Note that they are not exactly equivalent. They can give different results for negative integers. For example:
-5 / 2 = -2
-5 >> 1 = -3
(ideone)
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What are the differences in die() and exit() in PHP?
...tring or integer as an argument and make them identical!"
The end result is that this didn't really make things any "easier",
just more confusing. C and Perl coders will continue to use exit() to
toss an integer exit value only, and die() to toss an error message
and exit with a failure. ...
Trim spaces from end of a NSString
...l it like this:
NSString *oneTwoThree = @" TestString ";
NSString *resultString;
resultString = [self removeEndSpaceFrom:oneTwoThree];
resultString will then have no spaces at the end.
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Should private helper methods be static if they can be static
... the class members, and operate solely on their arguments, returning a result.
21 Answers
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Is it possible to have SSL certificate for IP address, not domain name?
...ou will save a few milliseconds at best, and that is per visit, as DNS results are cached on multiple levels.
I don't think your idea makes sense from an optimization viewpoint.
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Create RegExps on the fly using string variables
...have to backslash-escape them to fix that. Unfortunately, there's not a built-in function to do this for you, so here's one you can use:
function escapeRegExp(s) {
return s.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&')
}
Note also that when you use a RegExp in replace(), the replacement string...
How to check if an appSettings key exists?
... solution is incorrect. AppSettings is a NameValueCollection which by default is case-insensitive when it comes to key lookups. The LINQ .Contains extension method you're using here however will default to a case-sensitive comparison.
– Jax
Jun 4 '15 at 19:00
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Get current AUTO_INCREMENT value for any table
...enerated value successfully inserted for an AUTO_INCREMENT column as a result of the most recently executed INSERT statement." Intuitive! dev.mysql.com/doc/refman/5.6/en/…
– Charlie
Jun 12 '15 at 22:04
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What is __future__ in Python used for and how/when to use it, and how it works
...nt
>>> from __future__ import print_function
>>> print
<built-in function print>
>>>
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How can I use Bash syntax in Makefile targets?
... find Bash syntax very helpful, e.g. process substitution like in diff <(sort file1) <(sort file2) .
6 Answers
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