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Bash: If/Else statement in one line
...ep some_proces[s]; then echo 1; else echo 0; fi. Locally it seems to work for me. Is it because OP had the redirection in the command he tried?
– user3104542
Feb 28 '14 at 13:27
1...
How to get the top 10 values in postgresql?
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For this you can use limit
select *
from scores
order by score desc
limit 10
If performance is important (when is it not ;-) look for an index on score.
Starting with version 8.4, you can also use the standard (SQL:2008...
How does View Controller Containment work in iOS 5?
...ainer view controller to call the willMoveToParentViewController: method before calling the removeFromParentViewController method. The removeFromParentViewController method calls the didMoveToParentViewController: method of the child view controller."
Also, there is an example worked out here and s...
Error: Could not create the Java Virtual Machine Mac OSX Mavericks
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Thank you for this. I spent 15 minutes looking into different ways the VM could be failing to load because I was typing --version instead of -version. And yes, what an utterly garbage error message -_-;
– Gavin
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Case insensitive access for generic dictionary
...ionary = ...;
var comparer = StringComparer.OrdinalIgnoreCase;
int? value;
foreach (var element in myDictionary)
{
if (String.Equals(element.Key, myKey, comparer))
{
value = element.Value;
break;
}
}
This saves you the cost of creating a new data structure, but in return the cost of ...
How to interactively (visually) resolve conflicts in SourceTree / git
I'm using (Windows) SourceTree for my git project. I can do it in either command prompt or Linux terminal.
3 Answers
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How to convert list of tuples to multiple lists?
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franklsf95 goes for performance in his answer and opts for list.append(), but they are not optimal.
Adding list comprehensions, I ended up with the following:
def t1(zs):
xs, ys = zip(*zs)
return xs, ys
def t2(zs):
xs, ys = []...
What is a practical use for a closure in JavaScript?
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Its a minimal example but maybe you can see uses to it? We used this to enforce public/private methods.
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How do I create a SHA1 hash in ruby?
.../stdlib-1.9.2/libdoc/digest/rdoc/index.html). It includes implementations for SHA1, SHA2, MD5 and others hash algorithms.
– jwfearn
Jun 11 '12 at 18:07
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Which regular expression operator means 'Don't' match this character?
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You can use negated character classes to exclude certain characters: for example [^abcde] will match anything but a,b,c,d,e characters.
Instead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word character" (letter...