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Meaning of “[: too many arguments” error from if [] (square brackets)
... shells called by /bin/sh etc.
This means on some systems, it might work from the console but not when called elsewhere, like from cron, depending on how everything is configured.
It would look like this:
VARIABLE=$(/some/command);
if [[ $VARIABLE == 0 ]]; then
# some action
fi
If your com...
Converting XML to JSON using Python?
...). As of Python 2.6, support for converting Python data structures to and from JSON is included in the json module.
So the infrastructure is there.
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Upload failed You need to use a different version code for your APK because you already have one wit
... in Google Play's Developer Console? I have just changed the version code from 2 to 3 and it failed to upload the build.
1...
Run an OLS regression with Pandas Data Frame
...das data frame and I would like to able to predict the values of column A from the values in columns B and C. Here is a toy example:
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Generate random integers between 0 and 9
...
Try:
from random import randrange
print(randrange(10))
Docs: https://docs.python.org/3/library/random.html#random.randrange
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CSS Progress Circle [closed]
...imation-name: right-spin;
}
/* Rotate the right side of the progress bar from 0 to 180 degrees */
@-webkit-keyframes right-spin {
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(180deg);
}
}
/* Rotate the left side of the progress bar from 0 to 360...
How do I get the RootViewController from a pushed controller?
So, I push a view controller from RootViewController like:
8 Answers
8
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How can I remove a character from a string using Javascript?
...t it just isn't right.
All I would like to do is remove the character r from a string.
The problem is, there is more than one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
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Why does the indexing start with zero in 'C'?
...and so the expression array[n] refers to a memory location n elements away from the starting element. This means that the index is used as an offset. The first element of the array is exactly contained in the memory location that array refers (0 elements away), so it should be denoted as array[0].
F...
Remove leading zeros from a number in Javascript [duplicate]
...t is the simplest and cross-browser compatible way to remove leading zeros from a number in Javascript ?
3 Answers
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