Ruby | Array unshift() function
Array#unshift() : unshift() is a Array class method which returns the shifted array with argumented element in place.
Syntax: Array.unshift()
Parameter: Array
Return: the shifted array with argumented element in place.
Example #1 :
Ruby
a = [ 18 , 22 , 33 , nil , 5 , 6 ]
b = [ 1 , 4 , 1 , 1 , 88 , 9 ]
c = [ 18 , 22 , 50 , 6 ]
puts "unshift() method form : #{a.unshift(2)}\n\n"
puts "unshift() method form : #{b.unshift(4)}\n\n"
puts "unshift() method form : #{c.unshift(22)}\n\n"
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Output :
unshift() method form : [2, 18, 22, 33, nil, 5, 6]
unshift() method form : [4, 1, 4, 1, 1, 88, 9]
unshift() method form : [22, 18, 22, 50, 6]
Example #2 :
Ruby
a = [ "abc" , "nil" , "dog" , "abc" ]
b = [ "cow" , nil , "abc" , "dog" ]
c = [ "cat" , nil , "abc" ]
puts "unshift() method form : #{a.unshift(" abc ")}\n\n"
puts "unshift() method form : #{b.unshift()}\n\n"
puts "unshift() method form : #{c.unshift()}\n\n"
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Output :
unshift() method form : ["abc", "abc", "nil", "dog", "abc"]
unshift() method form : ["cow", nil, "abc", "dog"]
unshift() method form : ["cat", nil, "abc"]
Last Updated :
24 Feb, 2022
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