JavaScript Coding Question – 1

const arr = [1, 2, '2', 3, 3, 4, 4, 5];
const result = [...new Set(arr)];

console.log(result);

output:

[ 1, 2, '2', 3, 4, 5 ]

• Here, in the above code the line const result = […new Set(arr)] removes duplicate values from the array arr using a Set, which only allows unique values.
• new Set(arr): Creates a new Set from the array. The Set will only keep unique values.
• [...new Set(arr)]: The spread operator ... is used to convert the Set back into an array.