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How to remove all null elements from a ArrayList or String Array?
...then asking to remove the contents of a collection from the other. Seems a bit of a hack, don't you think? Regarding speed, you have a point, if the list is really big and performance is a concern, I would suggest testing both ways. My guess would be that removeIf is faster, but it's a guess.
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Simple way to calculate median with MySQL
...OOR((4+2)/2); -- when total_rows is 4, avg rows 2 and 3
Finally, MariaDB 10.3.3+ contains a MEDIAN function
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How to remove/delete a large file from commit history in Git repository?
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For a simpler alternative, clone the repository to discard the unwanted bits.
$ cd ~/src
$ mv repo repo.old
$ git clone file:///home/user/src/repo.old repo
Using a file:///... clone URL copies objects rather than creating hardlinks only.
Now your history is:
$ git lola --name-status
* 8e0a11...
How can I generate an ObjectId with mongoose?
...s really unique? does mongoose any check before?
– R01010010
Jun 6 '16 at 9:49
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@R01010010 check...
How to check if an intent can be handled from some activity?
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edwardxu's solution works perfectly for me.
Just to clarify a bit:
PackageManager packageManager = getActivity().getPackageManager();
if (intent.resolveActivity(packageManager) != null) {
startActivity(intent);
} else {
Log.d(TAG, "No Intent available to handle action");
}
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HTML text input allow only numeric input
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10
The type="number" does not actually prevent entering invalid text into the field; appears that you can even cut and paste garbage data into...
How to detect if a variable is an array
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@ Christoph--I added a bit more via an edit. Fascinating topic.
– Nosredna
Jun 29 '09 at 15:37
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How to get the value from the GET parameters?
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2106
JavaScript itself has nothing built in for handling query string parameters.
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NoSQL - MongoDB vs CouchDB [closed]
...h replica sets)
Sharding built-in
Queries are javascript expressions
Run arbitrary javascript functions server-side
Has geospatial indexing and queries
Multiple storage engines with different performance characteristics
Performance over features
Document validation
Journaling
Powerful aggregation fr...
How to state in requirements.txt a direct github source
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answered May 16 '13 at 10:25
stalkstalk
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