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Ruby | Array shift() function
  • Last Updated : 06 Dec, 2019

Array#shift() : shift() is a Array class method which removes the first element of self and returns it or nil if the array is empty.

Syntax: Array.shift()

Parameter: Array

Return: removes the first element of self and returns it or nil if the array is empty.

Example #1 :






# Ruby code for shift() method
  
# declaring array
a = [18, 22, 33, nil, 5, 6]
  
# declaring array
b = [1, 4, 1, 1, 88, 9]
  
# declaring array
c = [18, 22, 50, 6]
  
# shift method example
puts "shift() method form : #{a.shift()}\n\n"
  
puts "shift() method form : #{b.shift(2)}\n\n"
  
puts "shift() method form : #{c.shift(3)}\n\n"

Output :

shift() method form : 18

shift() method form : [1, 4]

shift() method form : [18, 22, 50]

Example #2 :




# Ruby code for shift() method
  
# declaring array
a = ["abc", "nil", "dog"]
  
# declaring array
c = ["cat", nil]
  
# declaring array
b = ["cow", nil, "dog"]
  
  
# shift method example
puts "shift() method form : #{a.shift()}\n\n"
  
puts "shift() method form : #{b.shift()}\n\n"
  
puts "shift() method form : #{c.shift()}\n\n"

Output :

shift() method form : abc

shift() method form : cow

shift() method form : cat




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