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Final arguments in interface methods - what's the point?
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Count, size, length…too many choices in Ruby?
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For arrays and hashes size is an alias for length. They are synonyms and do exactly the same thing.
count is more versatile - it can take an element or predicate and count only those items that match.
> [1,2,3].count{|x| x > 2 }
=> 1
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Why is Maven downloading the maven-metadata.xml every time?
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In MySQL queries, why use join instead of where?
...s no performance benefit to using either syntax over the other. The optimizer sees them as the same query. But more complex queries can benefit from using ANSI-92 syntax:
Ability to control JOIN order - the order which tables are scanned
Ability to apply filter criteria on a table prior to join...
Using mixins vs components for code reuse in Facebook React
...state.
Two articles that helped me most:
Thinking in React made me realize I don't actually want nested components for this;
Reusable Components has a neat mixin example.
It turned out to that I only needed to write two (different) mixins: ValidationMixin and FormMixin.
Here's how I separated t...
git working on two branches simultaneously
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answered May 12 '15 at 9:29
VonCVonC
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std::next_permutation Implementation Explanation
...s implemented so I extracted the the gnu libstdc++ 4.7 version and sanitized the identifiers and formatting to produce the following demo...
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How can you debug a CORS request with cURL?
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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
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How can I use a Python script in the command line without cd-ing to its directory? Is it the PYTHONP
...dition to normal directories, individual PYTHONPATH entries may
refer to zipfiles containing pure Python modules (in either source or
compiled form). Extension modules cannot be imported from zipfiles.
The default search path is installation dependent, but generally
begins with prefix/lib...