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count vs length vs size in a collection
From using a number of programming languages and libraries I have noticed various terms used for the total number of elements in a collection.
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C# Test if user has write access to a folder
... fall down when you use long paths in Windows?
– Alexandru
Apr 20 '15 at 18:18
12
That won't tell...
Differences between INDEX, PRIMARY, UNIQUE, FULLTEXT in MySQL?
What are the differences between PRIMARY, UNIQUE, INDEX and FULLTEXT when creating MySQL tables?
3 Answers
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set the width of select2 input (through Angular-ui directive)
...laceholder: 'Select Country', width: '192px' }); solved my problem with IE and have no effect on FF and Chrome! Thanks!
– Adrian P.
Oct 6 '13 at 15:17
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How can I determine the current line number in JavaScript?
...nism for determining the line number of the currently executing statement (and if so, what is it)?
8 Answers
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Removing list of vms in vagrant cache
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You should use the following command to remove invalid entries from the global index:
vagrant global-status --prune
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Boolean.hashCode()
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1231 and 1237 are just two (sufficiently large) arbitrary prime numbers. Any other two large prime numbers would do fine.
Why primes?
Suppose for a second that we picked composite numbers (non-primes), say 1000 and 2000. When ins...
Block Comments in a Shell Script
...fore comment
: <<'END'
bla bla
blurfl
END
echo after comment
The ' and ' around the END delimiter are important, otherwise things inside the block like for example $(command) will be parsed and executed.
For an explanation, see this and this question.
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#import using angle brackets < > and quote marks “ ”
..." for files in your project that you've got the implementation source to, and angle brackets <> when you're referencing a library or framework.
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How do I check if a given string is a legal/valid file name under Windows?
...ionality in my application. A user can type a destination filename pattern and (after replacing some wildcards in the pattern) I need to check if it's going to be a legal filename under Windows. I've tried to use regular expression like [a-zA-Z0-9_]+ but it doesn't include many national-specific c...