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How to unzip a list of tuples into individual lists? [duplicate]
...want to unzip this list into two independent lists. I'm looking for some standardized operation in Python.
2 Answers
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How to migrate back from initial migration in Django 1.7?
I created a new app with some models and now I noticed that some of the models are poorly thought out. As I haven't committed the code the sensible thing would be to migrate the database to last good state and redo the migration with better models. In this case the last good state is database where ...
How to get the last value of an ArrayList
...seem very efficient to me. I come from C++, where there are actual front() and back() methods on the list object, that are internally implemented with head and tail references. Is there a similar mechanism in Java?
– Brady
Oct 13 '14 at 9:18
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Can constructors be async?
...onstructor acts very similarly to a method returning the constructed type. And async method can't return just any type, it has to be either “fire and forget” void, or Task.
If the constructor of type T actually returned Task<T>, that would be very confusing, I think.
If the async constru...
How to deal with floating point number precision in JavaScript?
...s, e.g. do money
calculations entirely in cents. But
this is more work and has some
drawbacks.
Note that the first point only applies if you really need specific precise decimal behaviour. Most people don't need that, they're just irritated that their programs don't work correctly with nu...
Replace multiple strings with multiple other strings
...in a string with multiple other words. The string is "I have a cat, a dog, and a goat."
18 Answers
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advantage of tap method in ruby
I was just reading a blog article and noticed that the author used tap in a snippet something like:
18 Answers
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How can I convert byte size into a human-readable format in Java?
...osted here was the most copied Java snippet of all time on Stack Overflow, and it was flawed. It was fixed, but it got messy.
Full story in this article: The most copied Stack Overflow snippet of all time is flawed!
Source: Formatting byte size to human readable format | Programming.Guide
SI (1 k =...
Google OAuth 2 authorization - Error: redirect_uri_mismatch
...s/console I have registered my application, set up generated Client ID: and Client Secret to my app and tried to log in with Google.
Unfortunately, I got the error message:
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How to filter None's out of List[Option]?
...ar to someList.flatten.map, as one often wants to work with these elements and not just flatten the list out of fun.
– Frank
Apr 11 '12 at 11:38
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