does my number look big in this?

A Narcissistic Number is a number which is the sum of its own digits, each raised to the power of the number of digits.

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For example, take 153 (3 digits):
    1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153

and 1634 (4 digits):

    1^4 + 6^4 + 3^4 + 4^4 = 1 + 1296 + 81 + 256 = 1634

The Challenge:

Your code must return true or false depending upon whether the given number is a Narcissistic number.

Error checking for text strings or other invalid inputs is not required, only valid integers will be passed into the function.

Answer:

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def ( value )
  # Code me
  sum = 0
  value.to_s.split("").each {|item| sum += item.to_i**value.to_s.size}
  value == sum
end

#大佬们的回答:
def ( value )
  value == value.to_s.chars.map { |x| x.to_i**value.to_s.size }.reduce(:+)
end