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"
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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"
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Output :
join : abc4nil4dog join : cow--dog join : cat**