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Test whether a Ruby class is a subclass of another class
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edited Apr 17 '13 at 12:28
webwurst
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php check if array contains all array values from another array
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161
Look at array_intersect().
$containsSearch = count(array_intersect($search_this, $all)) == co...
Get Selected index of UITableView
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NSIndexPath *selectedIndexPath = [tableView indexPathForSelectedRow];
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What does the “@” symbol mean in reference to lists in Haskell?
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Yes, it's just syntactic sugar, with @ read aloud as "as". ps@(p:pt) gives you names for
th...
How to get one value at a time from a generator function in Python?
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Yes, or next(gen) in 2.6+.
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What is the theoretical maximum number of open TCP connections that a modern Linux box can have
... source_port varies to differentiate the different connections. Ports are 16-bit numbers, therefore the maximum number of connections any given client can have to any given host port is 64K.
However, multiple clients can each have up to 64K connections to some server's port, and if the server has m...
Adding a regression line on a ggplot
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178
In general, to provide your own formula you should use arguments x and y that will correspond ...
Ruby/Rails: converting a Date to a UNIX timestamp
How would I get a UNIX timestamp (number of seconds since 1970 GMT) from a Date object in a Rails app?
5 Answers
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How to quit scala 2.11.0 REPL?
In the last version of scala (2.10.3) REPL, I can type exit to quit from REPL. However, in Scala 2.11.0 this doesn't work.
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Can I apply the required attribute to fields in HTML5?
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