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How do I create a class instance from a string name in ruby?
...stackoverflow.com%2fquestions%2f5924495%2fhow-do-i-create-a-class-instance-from-a-string-name-in-ruby%23new-answer', 'question_page');
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How does one generate a random number in Apple's Swift language?
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Warning: RC4 or arc4 has been shown to be distinguishable from pure random values. So although arc4 (a stream cipher) sounds cryptographically secure, it actually isn't.
– Maarten Bodewes
Jun 8 '18 at 2:11
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How to view the Folder and Files in GAC?
...ders and sub folders in GAC . Also want to know about adding and removing from GAC .
5 Answers
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How do I get the object if it exists, or None if it does not exist?
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From django docs
get() raises a DoesNotExist exception if an object is not found for the given parameters. This exception is also an attribute of the model class. The DoesNotExist exception inherits from django.core.exce...
How do you change the size of figures drawn with matplotlib?
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figure tells you the call signature:
from matplotlib.pyplot import figure
figure(num=None, figsize=(8, 6), dpi=80, facecolor='w', edgecolor='k')
figure(figsize=(1,1)) would create an inch-by-inch image, which would be 80-by-80 pixels unless you also give a dif...
How to validate IP address in Python? [duplicate]
... Why the line: "return address.count('.') == 3" ?? Is that left over from your debugging?
– quux
Dec 15 '10 at 15:32
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Cancel a UIView animation?
...nt. Set a very short duration and make sure you use the +setAnimationBeginsFromCurrentState: method to start from the current state. When you set it to YES, the current animation is cut short. Looks something like this:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurren...
How to form tuple column from two columns in Pandas
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Can we delete an SMS in Android before it reaches the inbox?
I am deleting an SMS from the inbox but I want to know: How can I delete it before it reaches the inbox?
5 Answers
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How to use WeakReference in Java and Android development?
...ence to an object, but you don't want that reference to protect the object from the garbage collector. A classic example is a cache that you want to be garbage collected when memory usage gets too high (often implemented with WeakHashMap).
Be sure to check out SoftReference and PhantomReference as...