Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/array.rb

Overview

© 2008-01-07 Philipp Hofmann <[email protected]>

Instance Method Summary collapse

Instance Method Details

#add(a) ⇒ Object 



8
9
10
11
12
 
# File 'lib/array.rb', line 8

def add(a)
	n = []
	each_index { |i| n << (self[i] + a[i]) }
	n
end

#add!(a) ⇒ Object 



14
15
16
 
# File 'lib/array.rb', line 14

def add!(a)
	replace(add(a))
end

#shuffle ⇒ Object 



18
19
20
21
22
23
24
 
# File 'lib/array.rb', line 18

def shuffle
	# method 1, sorting is always slower
	sort_by { rand }
	# method 2, maybe faster
	# a = self.clone
	# a.collect { a.slice!(rand(a.size)) }
end