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When to use in vs ref vs out
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404
You should use out unless you need ref.
It makes a big difference when the data needs to be m...
How does origin/HEAD get set?
...ote update.)
Edit: The problem discussed below was corrected in Git 1.8.4.3; see this update.
There is a tiny caveat, though. HEAD is a symbolic ref, pointing to a branch instead of directly to a commit, but the git remote transfer protocols only report commits for refs. So Git knows the SHA1 ...
Scanning Java annotations at runtime [closed]
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Dave Jarvis
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answered Sep 12 '09 at 15:11
Arthur RonaldArt...
Set Django IntegerField by choices=… name
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– Alexander Ljungberg
Jul 13 '09 at 13:54
1
FWIW, if you need set it from a literal string (perhaps f...
rvm installation not working: “RVM is not a function”
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answered Feb 17 '12 at 23:44
mpapismpapis
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Why is pow(a, d, n) so much faster than a**d % n?
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4 Answers
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@UniqueConstraint annotation in Java
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427
To ensure a field value is unique you can write
@Column(unique=true)
String username;
The @...
How to dismiss ViewController in Swift?
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419
From you image it seems like you presented the ViewController using push
The dismissViewContr...
Break a previous commit into multiple commits
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14 Answers
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How to convert / cast long to String?
...ing.valueOf(date);
If your Long might be null and you don't want to get a 4-letter "null" string, you might use Objects.toString, like: String s = Objects.toString(date, null);
EDIT:
You reverse it using Long l = Long.valueOf(s); but in this direction you need to catch NumberFormatException
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