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List columns with indexes in PostgreSQL
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answered Feb 6 '10 at 13:17
cope360cope360
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Python vs Bash - In which kind of tasks each one outruns the other performance-wise? [closed]
.... I even found this that claims that you can see an improvement of over 2000% on dictionary-based operations.
11 Answers
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How does `is_base_of` work?
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109
If they are related
Let's for a moment assume that B is actually a base of D. Then for the cal...
Import PEM into Java Key Store
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First, convert your certificate in a DER format :
openssl x509 -outform der -in certificate.pem -out certificate.der
And after, import it in the keystore :
keytool -import -alias your-alias -keystore cacerts -file certificate.der
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How to check if element in groovy array/hash/collection/list?
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answered Sep 15 '08 at 20:44
shemnonshemnon
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What is this date format? 2011-08-12T20:17:46.384Z
I have the following date: 2011-08-12T20:17:46.384Z . What format is this? I'm trying to parse it with Java 1.4 via DateFormat.getDateInstance().parse(dateStr) and I'm getting
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Why does ConcurrentHashMap prevent null keys and values?
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BrunoBruno
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Understanding Python super() with __init__() methods [duplicate]
...on super if you haven't already.
Note that the syntax changed in Python 3.0: you can just say super().__init__() instead of super(ChildB, self).__init__() which IMO is quite a bit nicer. The standard docs also refer to a guide to using super() which is quite explanatory.
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Setting UIButton image results in blue button in iOS 7
...there is new button type called UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button
Check your .xib file and change button type to Custom
To do this programmatically, add this line to the viewDidLoad:
[UIButton buttonWithType:UIButtonTypeSystem];
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What is the best (and safest) way to merge a Git branch into master?
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3087
How I would do this
git checkout master
git pull origin master
git merge test
git push origin...