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"
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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"
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Output :
shift() method form : abc shift() method form : cow shift() method form : cat