Method: Array#after

Defined in:
lib/core/facets/array/before.rb

#after(value) ⇒ Object

Returns the value after the given value. The value before the last is the first. Returns nil if the given value is not in the array.

Examples

sequence = ['a', 'b', 'c']
sequence.after('a')           #=> 'b'
sequence.after('b')           #=> 'c'
sequence.after('c')           #=> 'a'
sequence.after('d')           #=> nil

CREDIT: Tyler Rick



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# File 'lib/core/facets/array/before.rb', line 35

def after(value)
  return nil unless include? value
  self[(index(value).to_i + 1) % length]
end