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Best explanation for languages without null

Every so often when programmers are complaining about null errors/exceptions someone asks what we do without null. 11 Answe...
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Task not serializable: java.io.NotSerializableException when calling function outside closure only o

...eption, try it). This is why if you put them outside classes it fixes the error. I'm going edit my answer a little to be more precise about what I mean - i.e. they cause the exception, not that they extend the interface. – samthebest Mar 24 '14 at 18:51 ...
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Why does changing the sum order returns a different result?

...t of additions vs. 4047866666666667 for the second set of additions. That error is significant enough to show in the printout of the total. In conclusion, be careful when performing mathematical operations on IEEE numbers. Some representations are inexact, and they become even more inexact when t...
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iOS: How to store username/password within an app?

... Manuel PintaldiManuel Pintaldi 1,05588 silver badges88 bronze badges ...
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Tracking the script execution time in PHP

... I'm getting some really weird numbers if I don't. Like a page that took 0.05 seconds to generate is saying it took 6s of CPU time...is this correct? See here: blog.rompe.org/node/85 – Darryl Hein Feb 22 '09 at 21:09 ...
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Is there any JSON Web Token (JWT) example in C#?

...hange the resolver code to request the certificates because else you get a error in a few days when Google changes it's certificates. – Thomas Apr 4 '18 at 15:05 ...
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Find out how much memory is being used by an object in Python [duplicate]

...| edited Oct 16 '17 at 21:05 answered Nov 8 '13 at 18:11 Uz...
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Load view from an external xib file in storyboard

...ib.instantiate(withOwner: self, options: nil).first as? UIView else { fatalError("Error loading \(self) from nib") } addSubview(view) view.translatesAutoresizingMaskIntoConstraints = false view.leadingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.leadingAnchor, constant...
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How to validate an email address in JavaScript

... reject any valid addresses [^@]+@[^@]+\.[^@]+ and protects against common errors. – Vroo Oct 26 '12 at 6:32 ...
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Cropping an UIImage

... Update 2014-05-28: I wrote this when iOS 3 or so was the hot new thing, I'm certain there are better ways to do this by now, possibly built-in. As many people have mentioned, this method doesn't take rotation into account; read some addi...