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What's wrong with foreign keys?

...inserting children? Right now when I submit "add comment" -- if you have already deleted your answer, this comment is now an orphan. FKs would've prevented it. Also, I could just change the parentID to be anything I want. Someone needs to check. :) – Matt Rogish ...
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WKWebView in Interface Builder

... it should read self = [super initWithFrame:myFrame configuration:myConfiguration]; also if you use constraints, don't forget to set self.translatesAutoresizingMaskIntoConstraints = NO; – Mojo66 De...
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Creating an empty Pandas DataFrame, then filling it?

... The Right Way™ to Create a DataFrame TLDR; (just read the bold text) Most answers here will tell you how to create an empty DataFrame and fill it out, but no one will tell you that it is a bad thing to do. Here is my advice: Wait until you are sure you have all the data yo...
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difference between socket programming and Http programming

...t relies on an underlying protocol which in HTTP's case is TCP. You can read more about OSI layers if you are interested. Sockets on the other hand are an API that most operating systems provide to be able to talk with the network. The socket API supports different protocols from the transport l...
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How often does python flush to a file?

... Is it possible to change the buffering for the already opened streams? Say, I want stdout to be line-buffered regardless of whether it is a console or redirected to a file? – Mikhail T. Sep 23 '18 at 3:36 ...
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Where is the WPF Numeric UpDown control?

...lic License, which basically means you get the full source code behind it (read the full license text for details). The UpDown controls are part of the free version. There is also a paid version of the library that contains a lot more controls / themes. – jrh ...
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Multi-project test dependencies with gradle

...{ new Helper(); // used from :modul:one's testFixtures } } Further reading For more info, see the documentation: https://docs.gradle.org/current/userguide/java_testing.html#sec:java_test_fixtures It was added in 5.6: https://docs.gradle.org/5.6/release-notes.html#test-fixtures-for-java-pro...
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Why do we need tuples in Python (or any immutable data type)?

I've read several python tutorials (Dive Into Python, for one), and the language reference on Python.org - I don't see why the language needs tuples. ...
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What is the difference between ports 465 and 587?

...] 2017-12-12 [RFC8314] If you are so inclined, you may wish to read the referenced RFC. This seems to clearly imply that port 465 is the best way to force encrypted communication and be sure that it is in place. Port 587 offers no such guarantee. ...
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How would I create a UIAlertView in Swift?

... Reading this answer the switch case you did is unnecessary. The switch is only useful if the type, or title aren't hardcoded ie they are dynamic: You might have a series of dynamic buttons so the titles are not hardcoded. And...