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How to read a file in reverse order?
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73
for line in reversed(open("filename").readlines()):
print line.rstrip()
And in Python 3:
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ASP.NET Identity's default Password Hasher - How does it work and is it secure?
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234
Here is how the default implementation (ASP.NET Framework or ASP.NET Core) works. It uses a Key...
Why doesn't indexOf work on an array IE8?
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edited Sep 10 '16 at 3:40
Gras Double
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Prevent row names to be written to file when using write.csv
... uq max neval
## write.csv(data, "baseR_file.csv", row.names = F) 13.8066424 13.8248250 13.9118324 13.8776993 13.9269675 14.3241311 10
## write_csv(data, "readr_file.csv") 3.6742610 3.7999409 3.8572456 3.8690681 3.8991995 4.0637453 10
## fwrite(data...
Open file dialog box in JavaScript
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edited Apr 6 '16 at 16:03
Ray Nicholus
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answe...
Hover and Active only when not disabled
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348
You can use :enabled pseudo-class, but notice IE<9 does not support it:
button:hover:enabl...
How do you get the magnitude of a vector in Numpy?
...ray -- say x.norm() -- but oh well).
import numpy as np
x = np.array([1,2,3,4,5])
np.linalg.norm(x)
You can also feed in an optional ord for the nth order norm you want. Say you wanted the 1-norm:
np.linalg.norm(x,ord=1)
And so on.
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Which terminal command to get just IP address and nothing else?
...127.0.0.1 | cut -d\ -f2
Or for linux system
hostname -i | awk '{print $3}' # Ubuntu
hostname -i # Debian
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Finding the PHP File (at run time) where a Class was Defined
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