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Correctly determine if date string is a valid date in that format
...et. Originally written by Glavić.]
Test cases:
var_dump(validateDate('2013-13-01')); // false
var_dump(validateDate('20132-13-01')); // false
var_dump(validateDate('2013-11-32')); // false
var_dump(validateDate('2012-2-25')); // false
var_dump(validateDate('2013-12-01')); // true
var_dump(...
SET versus SELECT when assigning variables?
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Luke Girvin
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answered Oct 15 '10 at 19:22
OMG PoniesOMG Pon...
Passing a string with spaces as a function argument in bash
...ur function declaration is wrong.
myFunction()
{
echo "$1"
echo "$2"
echo "$3"
}
And like the others, it works for me as well. Tell us what version of shell you are using.
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In which order should floats be added to get the most precise result?
...s things somewhat. Consider the case where we're adding single-precision (32 bit) floats, and there are 1 billion values equal to 1 / (1 billion), and one value equal to 1. If the 1 comes first, then the sum will come to 1, since 1 + (1 / 1 billion) is 1 due to loss of precision. Each addition has n...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...is returning an Integer object, which may have its values cached between -128 and 127. This is why the first value returns true - it's cached - and the second value returns false - 128 isn't a cached value, so you're getting two separate Integer instances.
It is important to note that you are comp...
log4j vs logback [closed]
...ck to log4j, you could do so within minutes by simply dropping slf4j-log4j12.jar onto your class path.
When migrating from logback to log4j, logback specific parts, specifically those contained in logback.xml configuration file would still need to be migrated to its log4j equivalent, i.e. log4j.pro...
How do I show the changes which have been staged?
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2664
It should just be:
git diff --cached
--cached means show the changes in the cache/index (i...
Exclude .svn directories from grep [duplicate]
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272
If you have GNU Grep, it should work like this:
grep --exclude-dir=".svn"
If happen to be o...
Adding a guideline to the editor in Visual Studio
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PSQLException: current transaction is aborted, commands ignored until end of transaction block
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20 Answers
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