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How to match a String against string literals in Rust?
...k the match fails because of whitespace that trim() removes. This is nice for deferencing to match against user input.
– Gerard Sexton
Sep 20 '16 at 13:25
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val-mutable versus var-immutable in Scala
...l with a mutable collection versus using var with an immutable collection? Or should you really aim for val with an immutable collection?
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Undefined reference to `sin` [duplicate]
I have the following code (stripped down to the bare basics for this question):
4 Answers
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What is the 'override' keyword in C++ used for? [duplicate]
I am a beginner in C++. I have come across override keyword used in the header file that I am working on. May I know, what is real use of override , perhaps with an example would be easy to understand.
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When do you need to explicitly call a superclass constructor?
...rios do I need to explicitly type super() to get the superclass constructor to run?
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What's wrong with Groovy multi-line String?
Groovy scripts raises an error:
3 Answers
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Getting a list of values from a list of dicts
...s a value key, you can write (assuming your list is named l)
[d['value'] for d in l]
If value might be missing, you can use
[d['value'] for d in l if 'value' in d]
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How do I copy an entire directory of files into an existing directory using Python?
Run the following code from a directory that contains a directory named bar (containing one or more files) and a directory named baz (also containing one or more files). Make sure there is not a directory named foo .
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Can I list-initialize a vector of move-only type?
...rough my GCC 4.7 snapshot, it tries to copy the unique_ptr s into the vector.
5 Answers
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Maximum MIMEType Length when storing type in DB
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According to RFC 4288 "Media Type Specifications and Registration Procedures", type (eg. "application") and subtype (eg "vnd...") both can be max 127 characters. You do the math :)
Edit: Meanwhile, that document has been obsole...