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How to filter a dictionary according to an arbitrary condition function?
...e saw a more knowledgeable one and thus, continued to pick ones brains ;) my Q : stackoverflow.com/questions/50104127/…
– Manakin
May 2 '18 at 14:16
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Remove unwanted parts from strings in a column
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thx! that works. I'm still wrapping my mind around map(), not sure when to use or not use it...
– Yannan Wang
Dec 3 '12 at 12:21
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How to close Android application?
I want to close my application, so that it no longer runs in the background.
22 Answers
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Test if a class has an attribute?
...rying to do a little Test-First development, and I'm trying to verify that my classes are marked with an attribute:
4 Answe...
Cannot send a content-body with this verb-type
I just got this exception (ProtocolViolationException) in my .NET 2.0 app (running on windows mobile 6 standard emulator). What confuses me is that as far as i know, I have not added any content body, unless I've inadvertently done it somehow. My code is below (very simple). Is there anything els...
String concatenation vs. string substitution in Python
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Concatenation is (significantly) faster according to my machine. But stylistically, I'm willing to pay the price of substitution if performance is not critical. Well, and if I need formatting, there's no need to even ask the question... there's no option but to use interpolatio...
What is duck typing?
...ls its walk() method. There are two approaches, you can think of:
This is my function and I must be sure that it only accepts the Bird, or their code will not compile. If anyone wants to use my function, he must be aware that I only accept Birds
My function get any objects and I just call the objec...
PostgreSQL: Drop PostgreSQL database through command line [closed]
I'm trying to drop my database and create a new one through the command line.
4 Answers
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Android Use Done button on Keyboard to click button
Ok in my app I have a field for the user to input a number. I have the field set to only accept numbers. When the user clicks on the field it brings up the keyboard. On the keyboard (on ICS) there is a done button. I would like for the done button on the keyboard to trigger the submit button i have ...
Why is exception handling bad?
...ibly corrupted object.
This example may seem stupid (ok, I had to stretch myself a bit to construct one :-)), but, the takeaway is that if a programmer isn't constantly thinking of exceptions, and making sure that every permutation of state gets rolled back whenever there are throws, you get into t...