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Get program execution time in the shell
... of the TIMEFORMAT variable as the output format.
Example:
$ time sleep 2
real 0m2.009s
user 0m0.000s
sys 0m0.004s
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How to determine if a type implements a specific generic interface type
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Analyze audio using Fast Fourier Transform
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The array you are showing is the Fourier Transform coefficients of the audio signal. These coe...
Difference between “git add -A” and “git add .”
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This answer only applies to Git version 1.x. For Git version 2.x, see other answers.
Summary:
git add -A stages all changes
git add . stages new files and modifications, without deletions
git add -u stages modifications and deletions, without new files
Detail:
git add -A is e...
How do you create nested dict in Python?
I have 2 CSV files: 'Data' and 'Mapping':
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Why would anyone use set instead of unordered_set?
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Find value in an array
... array, and if that's the case, you can use Array#include?(value):
a = [1,2,3,4,5]
a.include?(3) # => true
a.include?(9) # => false
If you mean something else, check the Ruby Array API
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