Ruby | Array class join() function
Last Updated :
31 May, 2021
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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 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 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**
