Ruby Method of the Day - Array.delete

Kelly McCauley — Tue, 13 Nov 2007 00:01:00 -0600

Signature

array.delete(object)                #=> object or nil
array.delete(object) {|o| block }   #=> object or returned_block_result

array.delete(object) removes all occurances of object from array and returns object if object is found in array or it returns nil if object is not found in array. If block is given and object is not found in array then the the block’s returned results is returned by array.delete.

Examples

a = [1,2,3,4,5,6,7]       #=> [1, 2, 3, 4, 5, 6, 7]
a.delete(7)               #=> 7
a                         #=> [1, 2, 3, 4, 5, 6]
a.delete('foo')           #=> nil

a = [7,1,2,3,7,4,5,6,7]   #=> [7, 1, 2, 3, 7, 4, 5, 6, 7]
a.delete(7)               #=> 7
a                         #=> [1, 2, 3, 4, 5, 6]

a.delete('foo') {false}   #=> false

a.delete('foo') do |item|
  "'#{item}' not found"
end                       #=> "'foo' not found"

Documentation Reference

Ruby version 1.8.6

Say what???: Ruby Method of the Day - Array.delete

Ruby Method of the Day - Array.delete

Signature

Examples

Documentation Reference