The
grep() of
enumerable is an inbuilt method in
Ruby returns an array of elements which contain every (element == pattern), of all the elements in the pattern. If the optional block is not given, then it returns an array containing the elements in that pattern.
Syntax: enu.grep(pattern) { |obj| block }
Parameters: The function takes a pattern and an optional block.
Return Value: It returns either an array of boolean values or an array containing the elements that are contained in the enumerable.
Example 1:
Output:
[3, 4, 5]
Example 2:
Output:
[true, false, true]
