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What is 'Pattern Matching' in functional languages?
...nstead of assignment.
Long answer: Pattern matching is a form of dispatch based on the “shape” of the value that it's given. In a functional language, the datatypes that you define are usually what are known as discriminated unions or algebraic data types. For instance, what's a (linked) list...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Unicode Processing in C++
...uilt in facilities for it. That isn't always a possibility with older code bases though, with the standard being so new at present.
EDIT: To clarify, C++11 is Unicode aware in that it now has support for Unicode literals and Unicode strings. However, the standard library has only limited support fo...
The quest for the Excel custom function tooltip
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UIBarButtonItem with custom image and no border
...ategories. Thanks @Vladimir for the inspiration. (note all my stuff is ARC-based) github.com/egold/UIKitConvenience/blob/master/UIKitConvenience/…
– Eric Goldberg
Jun 8 '12 at 21:52
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Search for executable files using find command
... is available.
GNU find comes with most Linux distros
By contrast, BSD-based platforms, including macOS, come with BSD find, which is less powerful.
As the scenario demands, -executable matches only files the current user can execute (there are edge cases.[1]).
The BSD find alternative offered...
How to properly add cross-site request forgery (CSRF) token using PHP
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Test for existence of nested JavaScript object key
...ill), all devs on the project would have to 'string search' the entire codebase. This isn't really a solution to the problem, as it introduces a much bigger problem
– Drenai
Jan 14 '18 at 11:20
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How to make lists contain only distinct element in Python? [duplicate]
...n implementation detail and should not be relied upon". Since they're both based on hashes, I'd think set would be the same, but it's not mentioned, so apparently not: docs.python.org/3.6/whatsnew/3.6.html
– Mark
Dec 3 '16 at 11:52
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How do you get the logical xor of two variables in Python?
...le, A XOR B XOR ... XOR Z. In other words, if you plan to use the addition-based version, then upon submitted the operands in True + True + False + True you should expect the result to be False since more than one of those is True, which works if the condition checks for == 1.
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