ES6 Sets

The video tutorial introduces sets in ES6, explaining their unique property of storing only unique values. It demonstrates how to create sets, add various data types, and check for existing values. The tutorial also covers deleting values, iterating through sets, and converting sets to arrays. Key differences between primitive and reference data types are highlighted, particularly in the context of set operations. The video concludes with a summary of the benefits and uses of sets in ES6.

What is a key characteristic of a set in JavaScript?

• It only stores primitive data types.

• It is a collection of key-value pairs.

• It can contain duplicate values.

• It contains unique values of any type.

Which method is used to add a value to a set?

• push()

• add()

• append()

• insert()

What happens if you try to add a duplicate value to a set?

• The set will throw an error.

• The set will replace the existing value.

• The duplicate value will be added.

• The set will ignore the duplicate value.

How can you check if a set contains a specific value?

• Using the contains() method.

• Using the includes() method.

• Using the has() method.

• Using the find() method.

What is the result of comparing two identical objects in a set?

• False, because they are primitive types.

• True, because they are reference types.

• False, because they are stored in different memory locations.

• True, because they have the same properties.

Which loop can be used to iterate over a set?

• while

• do...while

• for...of

• for...in

How can you convert a set into an array?

• Using convertToArray()

• Using Array.of()

• Using toArray()

• Using Array.from()