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How to draw border around a UILabel?
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In Swift the first line would read: myLabel.layer.borderColor = UIColor.greenColor().CGColor
– Roshambo
Jan 21 '15 at 22:17
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How does having a dynamic variable affect performance?
I have a question about the performance of dynamic in C#. I've read dynamic makes the compiler run again, but what does it do?
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How can I list the contents of a directory in Python?
...e to know if it's a file or not, and that saves CPU time because stat is already done when scanning dir in Windows:
example to list a directory and print files bigger than max_value bytes:
for dentry in os.scandir("/path/to/dir"):
if dentry.stat().st_size > max_value:
print("{} is bi...
If isset $_POST
...t filled up, so you must check for the emptiness too.
Since !empty() is already checks for both, you can use this:
if (!empty($_POST["mail"])) {
echo "Yes, mail is set";
} else {
echo "No, mail is not set";
}
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cv2.imshow command doesn't work properly in opencv-python
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imshow() only works with waitKey():
import cv2
img = cv2.imread('C:/Python27/03323_HD.jpg')
cv2.imshow('ImageWindow', img)
cv2.waitKey()
(The whole message-loop necessary for updating the window is hidden in there.)
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Java String array: is there a size of method?
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Read the first sentence of docs.oracle.com/javase/specs/jls/se8/html/jls-10.html and then try telling us that arrays aren't objects. ;)
– Michael Myers♦
May 28 '09 at 16:05
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
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This thread mentions:
If you don't remember the empty tree sha1, you can always derive it with:
git hash-object -t tree /dev/null
Or, as Ciro Santilli proposes in the comments:
printf '' | git hash-object --stdin -t tree
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Any decent text diff/merge engine for .NET? [closed]
...do not delete, Site would be more useful if this type of thing were allow (read: another site will allow this, and more, and rise up and turn SO into experts-exchange if useful questions like this keep getting closed for reasons based on the faulty hypothesis in the SO faq).
– ...
How do I catch an Ajax query post error?
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Also, I way to make $.ajax more readable is to use a hash for your data. For example: { name : 'John', location: 'Boston' }
– briangonzalez
Jan 24 '13 at 15:56
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