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Ruby | Array class join() function

  • Last Updated : 31 May, 2021

join() is an Array class method which returns the string which is created by converting each element of the array to a string, separated by the given separator.
 

Syntax: Array.join()
Parameter: Array 
separator
Return: join value of the array elements

Example #1:
 

Ruby




# Ruby code for join() method
 
# declaring array
a = [18, 22, 33, nil, 5, 6]
 
# declaring array
b = [1, 4, 1, 1, 88, 9]
 
# declaring array
c = [18, 22, nil, nil, 50, 6]
 
# join
puts "join : #{a.join("4")}\n\n"
 
# join
puts "join : #{b.join('-')}\n\n"
 
# join
puts "join : #{c.join("*")}\n\n"

Output : 
 



join : 1842243344546

join : 1-4-1-1-88-9

join : 18*22***50*6

Example #2: 
 

Ruby




# Ruby code for join() method
 
# declaring array
a = ["abc", "nil", "dog"]
 
# declaring array
b = ["cow", nil, "dog"]
 
# declaring array
c = ["cat", nil, nil]
 
# join
puts "join : #{a.join("4")}\n\n"
 
# join
puts "join : #{b.join('-')}\n\n"
 
# join
puts "join : #{c.join("*")}\n\n"

Output : 
 

join : abc4nil4dog

join : cow--dog

join : cat**

 




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