Ruby | Array class index() function
Last Updated :
08 Jan, 2020
index() is an Array class method which returns the index of the first object in the array.
Syntax: Array.index()
Parameter: Array
obj – object to search for
Return: Index value of the first 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 "index : #{a.index(5)}\n\n"
puts "index : #{b.index(4)}\n\n"
puts "index : #{c.index(nil)}\n\n"
|
Output :
index : 4
index : 1
index : 2
Example #2 :
a = [ "abc" , "nil" , "dog" ]
b = [ "cow" , nil , "dog" ]
c = [ "cat" , nil , nil ]
puts "index : #{a.index(" abc ")}\n\n"
puts "index : #{b.index(nil)}\n\n"
puts "index : #{c.index(nil)}\n\n"
|
Output :
index : 0
index : 1
index : 1
Like Article
Suggest improvement
Share your thoughts in the comments
Please Login to comment...