Class: Array

Inherits:
Object show all
Defined in:
lib/sc-core-ext/array.rb

Instance Method Summary collapse

Instance Method Details

#%(arr) ⇒ Object

Modulus operator: returns an array consisting only of those elements that are shared by both this array and the arr object. If arr is not an array, then only elements equal to arr itself are returned.

Examples:

[1, 2, 3] % [1, 2]   # => [1, 2]
[1, 2, 3] % 2        # => [2]



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# File 'lib/sc-core-ext/array.rb', line 20

def %(arr)
  select { |i| arr.kind_of?(Array) ? arr.include?(i) : arr == i }
end

#deep_dup ⇒ Object

Performs a “deep copy” of this array; that is, returns an Array that is a duplicate of this Array, and whose elements have each, in turn, had #deep_dup or #dup called on them. This should produce an Array whose every element is a copy of the original.

This operation is expensive, and should be used sparingly.



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# File 'lib/sc-core-ext/array.rb', line 7

def deep_dup
  self.collect do |ele|
    ele.respond_to?(:deep_dup) ? ele.deep_dup : ele.dup?
  end
end