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Converting NSString to NSDate (and back again)
...String = @"01-02-2010";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"dd-MM-yyyy"];
NSDate *dateFromString = [dateFormatter dateFromString:dateString];
NSDate convert to NSString:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[d...
Why use Gradle instead of Ant or Maven? [closed]
What does another build tool targeted at Java really get me?
9 Answers
9
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How to calculate the angle between a line and the horizontal axis?
...2(deltaY, deltaX) * 180 / PI
EDIT (Feb. 22, 2017): In general, however, calling atan2(deltaY,deltaX) just to get the proper angle for cos and sin may be inelegant. In those cases, you can often do the following instead:
Treat (deltaX, deltaY) as a vector.
Normalize that vector to a unit vector. ...
How do I get a list of all the duplicate items using pandas in python?
...rt issues. I would like to get a list of the duplicate items so I can manually compare them. When I try to use pandas duplicated method , it only returns the first duplicate. Is there a a way to get all of the duplicates and not just the first one?
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c#: getter/setter
...ate the equivalent of the following simple implementation:
private string _type;
public string Type
{
get { return _type; }
set { _type = value; }
}
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How to get all groups that a user is a member of?
... returns members of a specific group. Is there a cmdlet or property to get all the groups that a particular user is a member of?
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Regex: ignore case sensitivity
...ow can I make the following regex ignore case sensitivity? It should match all the correct characters but ignore whether they are lower or uppercase.
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Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
10 Answers
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A non well formed numeric value encountered
...atetime description into a Unix timestamp (integer):
date("d", strtotime($_GET['start_date']));
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PHP DateTime::modify adding and subtracting months
...s not a bug:
The current behavior is correct. The following happens internally:
+1 month increases the month number (originally 1) by one. This makes the date 2010-02-31.
The second month (February) only has 28 days in 2010, so PHP auto-corrects this by just continuing to count days from February...