The JavaScript Set object is used to store the elements with unique values. The values can be of any type i.e. whether primitive values or object references.
Syntax
new Set([iterable])
Parameter
iterable – It represents an iterable object whose elements will be added to the new Set.
Points to remember
- A set object uses the concept of keys internally.
- A set object cannot contain the duplicate values.
- A set object iterates its elements in insertion order.
JavaScript Set Methods
Let’s see the list of JavaScript set methods with their description.
| Methods | Description |
|---|---|
| add() | It adds the specified values to the Set object. |
| clear() | It removes all the elements from the Set object. |
| delete() | It deletes the specified element from the Set object. |
| entries() | It returns an object of Set iterator that contains an array of [value, value] for each element. |
| forEach() | It executes the specified function once for each value. |
| has() | It indicates whether the Set object contains the specified value element. |
| values() | It returns an object of Set iterator that contains the values for each elemants. |
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