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The tilde operator in C
...F hashing algorithm, and I'm curious what it does. (The code is from Eternally Confused .)
6 Answers
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When to use an object instance variable versus passing an argument to the method
...sus simply declaring them as object instance variables that are visible to all of the object's methods?
5 Answers
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Is a GUID unique 100% of the time?
...ge that the probability of the same number being
generated twice is very small. For
example, consider the observable
universe, which contains about 5×1022
stars; every star could then have
6.8×1015 universally unique GUIDs.
From Wikipedia.
These are some good articles on how a GUID is made (for ...
Detect and exclude outliers in Pandas data frame
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If you have multiple columns in your dataframe and would like to remove all rows that have outliers in at least one column, the following expression would do that in one shot.
df = pd.DataFrame(np.random.randn(100, 3))
from scipy import stats
df[(np.abs(stats.zscore(df)) < 3).all(axis=1)]
...
Javascript - get array of dates between 2 dates
...'t get pushed onto the array or you'll end up with an array of n elements, all as the last date. Changing it to currentDate = new Date(currentDate) works.
– Scott Klarenbach
Dec 10 '10 at 22:46
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Comment shortcut Android Studio
...
Mac With Numeric pad
Line Comment hold both: Cmd + /
Block Comment hold all three: Cmd + Alt + /
Mac
Line Comment hold both: Cmd + + =
Block Comment hold all three: Cmd + Alt + + =
Windows/linux :
Line Comment hold both: Ctrl + /
Block Comment hold all three: Ctrl + Shift + /
Same way to rem...
How do I discover memory usage of my application in Android?
How can I find the memory used on my Android application, programmatically?
9 Answers
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How to quietly remove a directory with content in PowerShell
...o remove everything within that folder: Remove-Item './folder/*'. If you really want to clear out only files of all folders you can list all leafs and pipe it to the Remove-Item cmdlet Get-ChildItem -Recurse -File | Remove-Item
– Michael Kargl
Jun 1 '19 at 11:3...
Problems with DeploymentItem attribute
...ed from the output folder to the folder where MSTest does it stuff.
Personally, if I have files that I need for my unit tests I've found that embedding those files as resources into an assembly, and having that assembly "unpack" itself during the tests is a more predictable way of doing things. YMM...
Mod of negative number is melting my brain
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arrayLength works fine for positive numbers but for negative numbers it all goes wrong.
12 Answers
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