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Ruby | Array concat() operation

  • Last Updated : 08 Jan, 2020

Array#concat() : concat() is a Array class method which returns the array after appending the two arrays together.

Syntax:  Array.concat()

Parameter:  Arrays to be combined

Return:  Append the two arrays

Code #1 : Example for concat() method




# Ruby code for concat() method
# adding elements at the end
  
# declaring array
a = [18, 22, 33, nil, 5, 6]
  
# declaring array
b = [5, 4, nil, 1, 88, 9]
  
# declaring array
c = [18, 22, nil, 40, 50, 6]
  
# COMBINING TWO ARRAYS
puts "combining a and b : #{a.concat(b)}\n\n"
  
puts "combining c and b : #{b.concat(c)}\n\n"
  
puts "combining a and c : #{c.concat(a)}\n\n"

Output :

combining a and b : [18, 22, 33, nil, 5, 6, 5, 4, nil, 1, 88, 9]

combining c and b : [5, 4, nil, 1, 88, 9, 18, 22, nil, 40, 50, 6]

combining a and c : [18, 22, nil, 40, 50, 6, 18, 22, 33, nil, 5, 6, 5, 4, nil, 1, 88, 9]

Code #2 : Example for concat() method




# Ruby code for concat() method
# adding elements at the end
  
# declaring array
a = ["abc", "xyz", "dog"]
  
# declaring array
b = ["cow", "cat", "dog"]
  
# declaring array
c = ["cat", "1", "dog"]
  
# COMBINING TWO ARRAYS
puts "combining a and b : #{a.concat(b)}\n\n"
  
puts "combining c and b : #{b.concat(c)}\n\n"
  
puts "combining a and c : #{c.concat(a)}\n\n"

Output :

combining a and b : ["abc", "xyz", "dog", "cow", "cat", "dog"]

combining c and b : ["cow", "cat", "dog", "cat", "1", "dog"]

combining a and c : ["cat", "1", "dog", "abc", "xyz", "dog", "cow", "cat", "dog"]



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