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How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?
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This code uses the fact that getTimezoneOffset returns a greater value during Standard Time versus Daylight Saving Time (DST). Thus it determines the expected output during Standard Time, and it compares whether the output of the given date the same (Standard) o...
How do I copy an object in Java?
...mmy = another.dummy; // you can access
}
}
Every object has also a clone method which can be used to copy the object, but don't use it. It's way too easy to create a class and do improper clone method. If you are going to do that, read at least what Joshua Bloch has to say about it in Effectiv...
Shuffling a list of objects
...se your results will vary
Note that shuffle works in place, and returns None.
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Circular list iterator in Python
...usly)
In order to manually advance the iterator and pull values from it one by one, simply call next(pool):
>>> next(pool)
'a'
>>> next(pool)
'b'
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How to compare 2 files fast using .NET?
...file, and you're checking to see if a new file is the same as the existing one, pre-computing the checksum on your "existing" file would mean only needing to do the DiskIO one time, on the new file. This would likely be faster than a byte-by-byte comparison.
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Check if pull needed in Git
...e git remote update, to bring your remote refs up to date. Then you can do one of several things, such as:
git status -uno will tell you whether the branch you are tracking is ahead, behind or has diverged. If it says nothing, the local and remote are the same.
git show-branch *master will show yo...
symbol(s) not found for architecture i386
...ibraries and dependent projects can require frameworks, so if you've added one recently then that can cause this error.
To add frameworks, right click on the project name in the project view, select Add, then select Existing frameworks... from the list. Then find the framework with the symbols you'...
What is the difference between a heuristic and an algorithm?
...is precisely defined. The solution could or could not be the best possible one but you know from the start what kind of result you will get. You implement the algorithm using some programming language to get (a part of) a program.
Now, some problems are hard and you may not be able to get an accept...
How to get all possible combinations of a list’s elements?
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This answer missed one aspect: the OP asked for ALL combinations... not just combinations of length "r".
So you'd either have to loop through all lengths "L":
import itertools
stuff = [1, 2, 3]
for L in range(0, len(stuff)+1):
for subset...
“Least Astonishment” and the Mutable Default Argument
Anyone tinkering with Python long enough has been bitten (or torn to pieces) by the following issue:
31 Answers
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