Hi everybody, I'm Aya Bouchiha, on this amazing day, we will talk about all Set Methods and Properties like has(), add(), and size.

Set: is a collection of items and a built-in object, which stores only unique values.

size: is a set property that returns the length of the unique items in a specified set.

Set Methods

add(valueToAdd): is a set method that lets you add a new element to the specified Set.

delete(valueToDelete): is a set method that lets you remove an element in a specified Set.

clear(): means deleting all set elements.

has(valueToCheck): checks if the given value exists in a set.

entries(): returns an array(iterator) [val, val] for each item in the specified Set.

values(): like keys(), It returns a new iterator object which contains the values for each element in the specified Set.

forEach(callback): this Set method invokes a callback for each element in the specified Set.

size: returns the length of the unique items in a specified set.
add(valueToAdd): lets you add a new element to the specified Set.
delete(valueToDelete):lets you remove an element in a specified Set.
clear(): delete all Set elements.
has(valueToCheck): checks if the given value exists in a set.
entries(): returns an array(iterator) [val, val] for each item in the specified Set.
values(): returns a new iterator object which contains the values for each element in the specified Set.

forEach(callback): invokes a callback for each element in the specified Set.

Have a great day!