findAll :: Enumerable |
This is a sort of all-purpose version of grep (which is specific to String representations of the values). findAll lets you define your predicate for the elements, providing maximum flexibility.
Examples
$R(1, 10).findAll(function(n) { return 0 == n % 2; }) // -> [2, 4, 6, 8, 10]
[ 'hello', 'world', 'this', 'is', 'nice'].findAll(function(s) { return s.length >= 5; }) // -> ['hello', 'world']
See also
The reject method is the opposite of this one. If you need to split elements in two groups based upon a predicate, look at partition.
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Prototype API 1.5.0 - prototypejs.org