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How to estimate how much memory a Pandas' DataFrame will need?
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To include indexes, pass index=True.
So to get overall memory consumption:
>>> df.memory_usage(index=True).sum()
731731000
Also, passing deep=True will enable a more accurate memory usage report, that accounts for the full usage of the contained objects.
This is because memory usage d...
What's the best way to detect a 'touch screen' device using JavaScript?
...m using jquery-mobile.js to detect the touch screen events and it works on iOS, Android etc., but I'd also like to write conditional statements based on whether the user's device has a touch screen.
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this.setState isn't merging states as I would expect
...ame = 'Barfoo';
this.setState({ selected: newSelected });
I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing selected part of the state by creating a shallow copy of it.
Another solution would be to write setStateRecursively() which do...
How can I delete a query string parameter in JavaScript?
... a URL string in standard JavaScript other than by using a regular expression?
26 Answers
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When is layoutSubviews called?
...ave a custom view that's not getting layoutSubview messages during animation.
9 Answers
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How does clipsToBounds work?
...r a simple "1" or "2" so that I can discuss these as view1 or view2. Additionally, the black view is the same size as the white view, but it's origin is at the white view's center.
In the view controller's viewDidLoad method, we have the following code:
Objective-C:
- (void)viewDidLoad {
[su...
NSURLRequest setting the HTTP header
I need to set the HTTP header for a request. In the documentation for the NSURLRequest class I didn't find anything regarding the HTTP header. How can I set the HTTP header to contain custom data?
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Using reCAPTCHA on localhost
I'm developing a website using PHP and I want to make a human verification in one of the sessions. For the development, I'm initially running the system locally and when it is ready, I'm gonna make put it on in a certain domain.
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How to atomically delete keys matching a pattern using Redis
...use of performance maters, keys
command should not use for regular operations in production, this
command is intended for debugging and special operations. read
more
See the EVAL documentation.
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