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Why should hash functions use a prime number modulus?
... ago, I bought a data structures book off the bargain table for $1.25. In it, the explanation for a hashing function said that it should ultimately mod by a prime number because of "the nature of math".
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How to mount a host directory in a Docker container
... possible you cannot map a host directory to a docker container directory within a dockerfile, because the host directory can change depending on which machine you are running on. To map a host directory to a docker container directory you need to use the -v flag when using docker run like so:
dock...
Look up all descendants of a class in Ruby
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edited Apr 26 '12 at 10:57
answered Mar 6 '10 at 19:04
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CoffeeScript on Windows?
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edited May 23 '17 at 12:26
Community♦
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answered Oct 11 '10 at ...
How to sort a list of objects based on an attribute of the objects?
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edited Sep 9 '19 at 12:57
Dorian Turba
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Laravel Eloquent: How to get only certain columns from joined tables
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edited Jan 12 '15 at 9:52
Bas Peeters
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Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
I've heard that SELECT * is generally bad practice to use when writing SQL commands because it is more efficient to SELECT columns you specifically need.
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Should I use string.isEmpty() or “”.equals(string)?
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The main benefit of "".equals(s) is you don't need the null check (equals will check its argument and return false if it's null), which you seem to not care about. If you're not worried about s being null (or are otherwise checking for it)...
Install tkinter for Python
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It is not very easy to install Tkinter locally to use with system-provided Python. You may build it from sources, but this is usually not the best idea with a binary package-based distro you're apparently running.
It's safer...
Python Linked List
...arate parts of them. Make them immutable and they are really easy to work with!
28 Answers
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