Class: Seq::Random

Inherits:

Seq

• Object
• Seq
• Seq::Random

Defined in:

lib/seq/random.rb

Overview

A Random seq chooses items from the list randomly.

Examples:

s = Seq::Random.new([1,2,3,4,5])
s.take(6) #=> [1, 4, 5, 3, 1, 2]

Constant Summary

Constants inherited from Seq

VERSION

Instance Method Summary

• #initialize(list = [], items = Float::INFINITY, default = nil) ⇒ Random constructor

  Creates a new Random seq instance.

• #next ⇒ Object

  Until ended it returns a randomly selected item from the list, when ended it returns the default value.

Methods inherited from Seq

#each, #ended?, #entries, #inc, #infinite?, #method_missing, #reset, #to_a

Constructor Details

#initialize(list = [], items = Float::INFINITY, default = nil) ⇒ Random

Creates a new Random seq instance.

Parameters:

• list (Array) (defaults to: []) —

  List of values to cycle over

• items (Integer) (defaults to: Float::INFINITY) —

  Number of values to return

• default (Object) (defaults to: nil) —

  Value to return when finished cycling

# File 'lib/seq/random.rb', line 19

def initialize(list=[], items=Float::INFINITY, default=nil)
  super(list, items, 0, default)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Seq

Instance Method Details

#next ⇒ Object

Returns Until ended it returns a randomly selected item from the list, when ended it returns the default value.

Returns:

• Until ended it returns a randomly selected item from the list, when ended it returns the default value.

# File 'lib/seq/random.rb', line 25

def next
  if ended?
    @default
  else
    @list[rand(@list.size).to_i].tap { inc }
  end
end