Ruby | Array class first() function
Last Updated :
08 Jan, 2020
first() is a Array class method which returns the first element of the array or the first ‘n’ elements from the array.
Syntax: Array.first()
Parameter: Array
n – no. of elements
Return: first element of the array or the first ‘n’ elements from the array
Example #1 :
a = [ 18 , 22 , 33 , nil , 5 , 6 ]
b = [ 1 , 4 , 1 , 1 , 88 , 9 ]
c = [ 18 , 22 , nil , nil , 50 , 6 ]
puts "first : #{a.first(5)}\n\n"
puts "first : #{b.first(4)}\n\n"
puts "first : #{c.first()}\n\n"
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Output :
first : [18, 22, 33, nil, 5]
first : [1, 4, 1, 1]
first : 18
Example #2 :
a = [ "abc" , "nil" , "dog" ]
b = [ "cow" , nil , "dog" ]
c = [ "cat" , nil , nil ]
puts "first : #{a.first(5)}\n\n"
puts "first : #{b.first(4)}\n\n"
puts "first : #{c.first()}\n\n"
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Output :
first : ["abc", "nil", "dog"]
first : ["cow", nil, "dog"]
first : cat
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