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Two single-column indexes vs one two-column index in MySQL?
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136
If you have two single column indexes, only one of them will be used in your example.
If you h...
Any reason why scala does not explicitly support dependent types?
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sigma: java.lang.Object with Sigma{val bar: this.foo.Bar} = $anon$1@e3fabd8
and in fact, this is a crucial part of the encoding of dependent method types which is needed to escape from the 'Bakery of Doom' in Scala prior to 2.10 (or earlier via the experimental -Ydependent-method types Scala...
Splitting a string into chunks of a certain size
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How to detect a loop in a linked list?
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edited Feb 27 at 21:13
Dave L.
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answered Apr...
Test whether a Ruby class is a subclass of another class
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359
Just use the < operator
B < A # => true
A < A # => false
or use the <= op...
Use IntelliJ to generate class diagram
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edited Aug 3 '18 at 18:27
answered Jan 20 '12 at 14:29
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What does the 'Z' mean in Unix timestamp '120314170138Z'?
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SoggerSogger
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C++: what regex library should I use? [closed]
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FerruccioFerruccio
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How can I change the current URL?
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edited Sep 5 '13 at 2:25
answered Oct 2 '10 at 18:10
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Mongoose subdocuments vs nested schema
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73
According to the docs, it's exactly the same.
However, using a Schema would add an _id field as ...