Class: Tb::Func::LastN

Inherits:

Object

• Object
• Tb::Func::LastN

Defined in:

lib/tb/func.rb

Instance Method Summary

• #aggregate(ary) ⇒ Object
• #call(a1, a2) ⇒ Object
• #initialize(n) ⇒ LastN constructor

  A new instance of LastN.

• #start(value) ⇒ Object

Constructor Details

#initialize(n) ⇒ LastN

Returns a new instance of LastN.

# File 'lib/tb/func.rb', line 127

def initialize(n) @n = n end

Instance Method Details

#aggregate(ary) ⇒ Object

# File 'lib/tb/func.rb', line 130

def aggregate(ary) ary end

#call(a1, a2) ⇒ Object

# File 'lib/tb/func.rb', line 129

def call(a1, a2) a2.length == @n ? a2 : (a1+a2).last(@n) end

#start(value) ⇒ Object

# File 'lib/tb/func.rb', line 128

def start(value) [value] end