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jQuery UI Sortable Position
... demo here, remember the .index() value is zero-based, so you may want to +1 for display purposes.
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Static variables in member functions
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169
Since class A is a non-template class and A::foo() is a non-template function. There will be o...
Numpy array dimensions
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513
It is .shape:
ndarray.shape
Tuple of array dimensions.
Thus:
>>> a.shape
(2, ...
How to calculate “time ago” in Java?
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179
Take a look at the PrettyTime library.
It's quite simple to use:
import org.ocpsoft.prettyti...
How can I count the number of matches for a regex?
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177
matcher.find() does not find all matches, only the next match.
Solution for Java 9+
long mat...
Linux bash: Multiple variable assignment
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First thing that comes into my mind:
read -r a b c <<<$(echo 1 2 3) ; echo "$a|$b|$c"
output is, unsurprisingly
1|2|3
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Add new row to dataframe, at specific row-index, not appended?
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159
Here's a solution that avoids the (often slow) rbind call:
existingDF <- as.data.frame(mat...
Checking images for similarity with OpenCV
...lue (maybe a percentage) that indicates how similar these images are? E.g. 100% would be returned if the same image was passed twice, 0% would be returned if the images were totally different.
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Filtering a list based on a list of booleans
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188
You're looking for itertools.compress:
>>> from itertools import compress
>>&g...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
I use Mac OS X 10.8.2, and use JDK 7. Now I downloaded the latest version of IDEA IntelliJ, 11. But it doesn't seem to start without JDK 6. Is there any workaround?
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