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Why is $$ returning the same id as the parent process?
...bash 4, you can get the process ID of the child with BASHPID.
~ $ echo $$
17601
~ $ ( echo $$; echo $BASHPID )
17601
17634
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How do I apply a perspective transform to a UIView?
...veTransform = CATransform3DIdentity;
rotationAndPerspectiveTransform.m34 = 1.0 / -500;
rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, 45.0f * M_PI / 180.0f, 0.0f, 1.0f, 0.0f);
layer.transform = rotationAndPerspectiveTransform;
Swift 5.0
if let myView = self...
How to make an element in XML schema optional?
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191
Try this
<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="1" />...
AttributeError: 'datetime' module has no attribute 'strptime'
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edited Jul 13 '14 at 15:44
answered Oct 20 '13 at 16:46
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Rails params explained?
.... For example, if a user's browser requested
http://www.example.com/?foo=1&boo=octopus
then params[:foo] would be "1" and params[:boo] would be "octopus".
In HTTP/HTML, the params are really just a series of key-value pairs where the key and the value are strings, but Ruby on Rails has a spe...
Checking out Git tag leads to “detached HEAD state”
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edited Jun 3 '16 at 2:54
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Append class if condition is true in Haml
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331
.post{:class => ("gray" unless post.published?)}
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Does Dispose still get called when exception is thrown inside of a using statement?
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112
Yes, using wraps your code in a try/finally block where the finally portion will call Dispose(...
Get current batchfile directory
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511
System read-only variable %CD% keeps the path of the caller of the batch, not the batch file lo...
Cannot send a content-body with this verb-type
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152
Don't get the request stream, quite simply. GET requests don't usually have bodies (even thoug...