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How to name variables on the fly?
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edited Jul 5 '18 at 16:17
BroVic
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answered Apr 20 '1...
Rails 3 execute custom sql query without a model
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5 Answers
5
Active
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Can you do greater than comparison on a date in a Rails 3 search?
...e Carletti
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2
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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
...er pandas:]
You could use the function isnull instead of the method:
In [56]: df = pd.DataFrame([range(3), [0, np.NaN, 0], [0, 0, np.NaN], range(3), range(3)])
In [57]: df
Out[57]:
0 1 2
0 0 1 2
1 0 NaN 0
2 0 0 NaN
3 0 1 2
4 0 1 2
In [58]: pd.isnull(df)
Out[58]:
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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
... there are at least two differences :
__DIR__ only exists with PHP >= 5.3
which is why dirname(__FILE__) is more widely used
__DIR__ is evaluated at compile-time, while dirname(__FILE__) means a function-call and is evaluated at execution-time
so, __DIR__ is (or, should be) faster.
As,...
git push fails: RPC failed; result=22, HTTP code = 411
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How can I filter a Django query with a list of values?
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562
From the Django documentation:
Blog.objects.filter(pk__in=[1, 4, 7])
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Remove characters from NSString?
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answered May 29 '09 at 12:45
Tom JefferysTom Jefferys
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Pull to refresh UITableView without UITableViewController
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465
Add a refresh control directly to a UITableView without using a UITableViewController:
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UINavigationController without navigation bar?
...ollowing:
self.navigationController.navigationBar.isHidden = true //Swift 5
where self.navigationController is (obviously) an instance of UINavigationController. Seems to work for me, but I only briefly tested it before posting this.
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