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Understanding slice notation
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It's pretty simple really:
a[start:stop] # items start through stop-1
a[start:] # items start through the rest of the array
a[:stop] # items from the beginning through stop-1
a[:] # a copy of the whole array
There ...
Using build types in Gradle to run same app that uses ContentProvider on one device
...Debug version along with Release version on the same device using the same ContentProvider.
In build.gradle of your app set suffix for Debug build:
buildTypes {
debug {
applicationIdSuffix ".debug"
}
}
In AndroidManifest.xml file set android:authorities property of your ContentPro...
HTML5 check if audio is playing?
What's the javascript api for checking if an html5 audio element is currently playing?
9 Answers
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np.mean() vs np.average() in Python NumPy?
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np.average takes an optional weight parameter. If it is not supplied they are equivalent. Take a look at the source code: Mean, Average
np.mean:
try:
mean = a.mean
m>ex m>cept AttributeError:
return _wrapit(a, 'mean', axis, dtype, out)
return mean(axis, dtyp...
jQuery: Count number of list elements?
I've got a list that is generated from some server side code, before adding m>ex m>tra stuff to it with jQuery I need to figure out how many items are already in it.
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Is C++ contm>ex m>t-free or contm>ex m>t-sensitive?
I often hear claims that C++ is a contm>ex m>t-sensitive language. Take the following m>ex m>ample:
20 Answers
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Performance optimization strategies of last resort [closed]
There are plenty of performance questions on this site already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization.
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Days between two dates? [duplicate]
What's the shortest way to see how many full days have passed between two dates?
Here's what I'm doing now.
4 Answers
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Should I return a Collection or a Stream?
...adAllLines(path)
Not only does readAllLines have to hold the entire file contents in memory in order to store it into the result list, it also has to read the file to the very end before it returns the list. The lines method can return almost immediately after it has performed some setup, leaving ...
How to delete all records from table in sqlite with Android?
My app has two buttons, the first button is for deleting record on user input and the second button is for deleting all records. But when I want to delete data it shows the message
"Your application has been forcefully stopped".
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