Flowdock
method

peek_values

Importance_1
Ruby latest stable (v1_9_3_392) - 0 notes - Class: Enumerator
peek_values() public

Returns the next object as an array, similar to Enumerator#next_values, but doesn’t move the internal position forward. If the position is already at the end, StopIteration is raised.

Example

o = Object.new
def o.each
  yield
  yield 1
  yield 1, 2
end
e = o.to_enum
p e.peek_values    #=> []
e.next
p e.peek_values    #=> [1]
p e.peek_values    #=> [1]
e.next
p e.peek_values    #=> [1, 2]
e.next
p e.peek_values    # raises StopIteration
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