[AI Help] Question: how to avoid adding dupplicate objects in Set

[girdhar05]

What is the issue with the answer?

Set uses reference of object in order to store instead of value of object.
so, as of now. i'm not able to find any solution for storing directly an array of object into Set.

How would you categorize this issue?

• The answer is harmful / unsafe.
• The answer is not correct.
• The answer is not helpful.
• The answer is outdated.

What did you ask?

1. how to avoid adding dupplicate objects in Set

What did AI Help answer?

To avoid adding duplicate objects in a Set, you can utilize the nature of Sets to automatically handle uniqueness. When adding objects to a Set, it will automatically discard duplicates. Here's an example:

const mySet = new Set();

const obj1 = { id: 1, name: 'Alice' };
const obj2 = { id: 2, name: 'Bob' };
const obj3 = { id: 1, name: 'Alice' }; // Duplicate of obj1

mySet.add(obj1);
mySet.add(obj2);
mySet.add(obj3); // This will not be added as it's a duplicate of obj1

console.log(mySet); // Set { { id: 1, name: 'Alice' }, { id: 2, name: 'Bob' } }

In this example, obj3 is not added to the Set because it's a duplicate of obj1. The Set automatically handles the uniqueness of objects based on their content.

You can also use the has() method to check if an object is already in the Set before adding it:

if (!mySet.has(obj3)) {
  mySet.add(obj3);
}

This approach is useful if you need to perform additional logic based on whether the object is already in the Set.

What MDN pages did AI Help consult?

• Set
• Set.prototype.add()
• Set() constructor
• Sets (set)
• Set.prototype.delete()