JavaScript Map clear() method

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

Syntax

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

JavaScript Map clear() method example

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

Example 1

Let’s see a simple example of clear() method.

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Output:

Size before invoking clear(): 3  Size after invoking clear(): 0  

Example 2

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

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Output:

Element present before invoking clear(): true  Element present after invoking clear(): false