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Boolean.hashCode()
...aps can contain booleans together with other objects. Also, as pointed out by Drunix, a common way to create hash functions of composite objects is to reuse the subcomponents hash code implementations in which case it's good to return large primes.
Related questions:
Why use a prime number in has...
How exactly does a generator comprehension work?
... them into list, it waits, and yields each item out of the expression, one by one.
>>> my_list = [1, 3, 5, 9, 2, 6]
>>> filtered_list = [item for item in my_list if item > 3]
>>> print(filtered_list)
[5, 9, 6]
>>> len(filtered_list)
3
>>> # compare to...
Remove an Existing File from a Git Repo
...t.log
C-d
from m. narebski: You then need to remove the file from the repo by executing "git rm --cached <file> and then committing this removal"
If you were also hoping to make the repo look as if it had never tracked that file, that is much more complicated and highly discouraged as it not...
Unpivot with column name
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You may also try standard sql un-pivoting method by using a sequence of logic with the following code..
The following code has 3 steps:
create multiple copies for each row using cross join (also creating subject column in this case)
create column "marks" and fill in rele...
How to create a multiline UITextfield?
...iew where you want it and select the "editable" box. It will be multiline by default.
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Reimport a module in python while interactive
...but if the new version of a module does not define a name that was defined by the old version, the old definition is not removed.
If a module imports objects from another module using from ... import ..., calling reload() for the other module does not redefine the objects imported from it — one wa...
How do I undo “Scope to this” in Visual Studio 2012?
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Click the "Home" icon (third one by default, the one with a house pictogram) in the Solution explorer. This will revert the view to the full solution.
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rotating axis labels in R
...I have larger numbers as axis tick labels, it is nice to have them rotated by around 45 degrees to strike a good balance between readability (horizontal) and space efficiency (vertical).
– jmb
Aug 25 '19 at 19:31
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What is the difference between “int” and “uint” / “long” and “ulong”?
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This is quite fun to work out by hand. A 32-bit signed variable uses 1 bit for the sign (positive or negative) so can store values between -2^31 and +2^31 - 1
– Jaco Pretorius
Sep 16 '10 at 8:29
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Delete multiple objects in django
...something to make sure a random person can't delete all objects in your DB by guessing PKs.
– Yuji 'Tomita' Tomita
Feb 4 '12 at 19:22
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