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How does java do modulus calculations with negative numbers?
...d rather write r = ((x%n) + n) % n. Concerning power of 2 modulo (2,4,8,16,etc..) and positive answer, consider binary mask r = x & 63.
– Fabyen
Nov 17 '14 at 13:43
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How to get current page URL in MVC 3
...rt - as it would be included in the host header) before any load-balancing etc takes place.
At least, it does in our (rather convoluted!) environment :)
If there are any funky proxies in between that rewrite the host header, then this won't work either.
Update 30th July 2013
As mentioned by @Kev...
Django: ImproperlyConfigured: The SECRET_KEY setting must not be empty
...l need to create a local.py outside of your source repo for your passwords etc.
– Inyoka
Oct 1 '18 at 3:38
Should be t...
What is the best way to call a script from another script?
...e when the script itself is run. There are no functions, classes, methods, etc. I have another script which runs as a service. I want to call test1.py from the script running as a service.
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Can constructors throw exceptions in Java?
...r ought to be careful to avoid acquiring unmanaged resources (file handles etc) and then throwing an exception without releasing them. For example, if the constructor tries to open a FileInputStream and a FileOutputStream, and the first succeeds but the second fails, you should try to close the firs...
How to run a single test with Mocha?
...er is better since it will also work when mocha is used from inside karma, etc.
– Vivek Kodira
Aug 9 '16 at 8:53
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How to scp in Python?
...doesn't work outside linux-like systems, has issues with password prompts, etc.
– Foon
Feb 7 '17 at 16:23
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How to merge a transparent png image with another image using PIL
...f the type RGBA. So you need to call convert('RGBA') if they are paletted, etc.. If the background does not have an alpha channel, then you can use the regular paste method (which should be faster).
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Convert Iterator to ArrayList
...n use ArrayList 's operations on it such as get(index) , add(element) , etc.
12 Answers
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Bootstrap Modal immediately disappearing
...ppen. However, the button was in a <form> that was temporarily just fetching the same page.
I fixed this by adding type="button" to the button element, so that it wouldn't submit the form when clicked.
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