Home » Ruby Tutorial » Ruby Programs

Ruby program to remove duplicate elements from the array

Last Updated : December 15, 2025

Problem Solution

In this program, we will create an array of integers. Then we will remove duplicate elements from the array using uniq() method.

Program/Source Code

The source code to remove duplicate elements from the array is given below. The given program is compiled and executed successfully.

# Ruby program to remove duplicate 
# elements from the array

arr = [10,20,30,40,50,30,10];
res = arr.uniq();

puts "Array elements: \n",arr,"\n";
puts "Uniq Array elements: \n",res,"\n";

Output

Array elements: 
10
20
30
40
50
30
10

Uniq Array elements: 
10
20
30
40
50

Explanation

In the above program, we created an array arr with some elements. Then we used uniq() method. The uniq() method is used to remove duplicate elements from array and return an array with unique elements. After that, we printed unique elements.

Ruby Arrays Programs »