JavaScript Map delete() method

The JavaScript map delete() method is used to remove all the elements from Map object.

Syntax

The delete() method is represented by the following syntax:

JavaScript Map delete() method example

Here, we will understand delete() method through various examples.

Example 1

Let's see a simple example of delete() method.

Output:

 Size before invoking delete() method: 3 Size after invoking delete() method: 2 

Example 2

Let's see an example to determine whether the map object contains the specified element.

Output:

 Element present before invoking delete() method: true Element present after invoking delete() method: false