The Map.clear() method in JavaScript is used to remove all elements from a Map object. This method returns nothing as result (i.e. undefined) instead, it removes all the elements from the Map object.

Syntax

Following is the syntax of JavaScript Map.clear() method −

clear()

Parameters

This method does not accept any parameters.

Return value

This method returns nothing (i.e. undefined).

Examples

Example 1

In the following example, we are using the JavaScript Map.clear() method to remove all elements from this map −

As we can see in the output, it removed all the elements.

Example 2

In this example, we have initialized a Map with three key-value pairs using an array of arrays. Later, we used the clear() method to remove all the entries in it −

As we can see in the output, the size of the Map after using the clear() method is 0.

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