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Python “raise from” usage
...en they'd have to use raise NewException from databaseexception.__cause__, now using a different exception from the DatabaseException that they just caught.
– Martijn Pieters♦
Jul 16 '14 at 8:03
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Get the value of an instance variable given its name
...e public. What you should do is:
class Computer
attr_reader :cpus
end
Now you can do Computer.new(4).cpus.
Note that you can reopen any existing class and make a private ivar into a reader. Since an accessor is just a method, you can do Computer.new(4).send(var_that_evaluates_to_cpus)
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How to get a specific “commit” of a gem from github?
...s_admin , and since it is in (very) active development, bugs turn up every now and then.
2 Answers
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What is the difference between origin and upstream on GitHub?
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It also helps knowing what upstream is generally: stackoverflow.com/questions/2739376/…
– VonC
Mar 10 '12 at 20:59
2
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Padding within inputs breaks width 100%
Ok, so we know that setting padding to an object causes its width to change even if it is set explicitly. While one can argue the logic behind this, it causes some problems with some elements.
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How to create a temporary directory/folder in Java?
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This is dangerous. Java is known not to delete files immediately, so mkdir may fail sometimes
– Demiurg
Dec 1 '10 at 8:15
4
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Sell me on const correctness
...t the same time, the compiler can generate more efficient code because it knows exactly what the state of the variable/function will be at all times. If you are writing tight C++ code, this is good.
You are correct in that it can be difficult to use const-correctness consistently, but the end code...
How to train an artificial neural network to play Diablo 2 using visual input?
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UPDATE 2018-07-26: That's it! We are now approaching the point where this kind of game will be solvable! Using OpenAI and based on the game DotA 2, a team could make an AI that can beat semi-professional gamers in a 5v5 game. If you know DotA 2, you know this ga...
Version number comparison in Python
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Now you've merged all the good ideas from the others into your solution ... :-P still, this is pretty much what I'd do after all. I'll accept this answer. Thanks, everyone
– Johannes Charra
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How to copy part of an array to another array in C#?
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With named parameters that are available now, you would not need to document any of the 5 parameters.
– Hamish Grubijan
Aug 6 '12 at 16:47
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