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What Automatic Resource Management alternatives exist for Scala?
... type-safe alternative: a resource outside withResource block will be type error.
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Numpy - add row to array
... double bracket to the second argument, otherwise, it will raise dimension error.
In here I am adding on matrix A
1 2 3
4 5 6
with a row
7 8 9
same usage in np.r_
A= [[1, 2, 3], [4, 5, 6]]
np.append(A, [[7, 8, 9]], axis=0)
>> array([[1, 2, 3],
[4, 5, 6],
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Is there an interactive way to learn Vim? [closed]
Years ago I was looking for a way to learn Vim that didn't involve a wall of text, or scrolling through vimtutor without knowing the commands to do so. I wondered if anything else existed for such a purpose.
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Delete a key from a MongoDB document using Mongoose
...g any of the above functions did me the requirement. The function compiles error free but the field would still remain.
user.set('key_to_delete', undefined, {strict: false} );
did the trick for me.
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Check if two unordered lists are equal [duplicate]
...cepted one.
– Will
Oct 24 '13 at 11:05
2
I don't think this answer is correct because calling sor...
unit testing of private functions with mocha and node.js
...alues does not appear to be compatible with ES6 modules. I'm getting SyntaxError: 'import' and 'export' may only appear at the top level
– aij
Feb 29 '16 at 16:46
1
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Importing CommonCrypto in a Swift framework
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Works for me without step (5). With it I get a build error: ld: cannot link directly with /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator8.2.sdk/usr/lib/system/libcommonCrypto.dylib. Link against the umbrella framewo...
django unit tests without a db
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This error raises when you have tests that need database transactions. Obviously if you don't have a DB, you're not going to be able to run those tests. You should run your tests separately. If you just run your test by using pyth...
Is it possible to delete an object's property in PHP?
... object.
unset($object[$key])
Update
Newer versions of PHP throw fatal error Fatal error: Cannot use object of type Object as array as mentioned by @CXJ . In that case you can use brackets instead
unset($object{$key})
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In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...rite case string.Empty: because it's not a constant. You get a Compilation error : A constant value is expected
Look at this link for more info:
string-empty-versus-empty-quotes
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