JavaScript Map forEach() method

The JavaScript map forEach() method execute the specified function once for each key/value pair in the Map object.

Syntax

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

Parameter

callback – It represents the function to execute.

value – It represents the value that treat as this when executing callback.

JavaScript Map forEach() method example

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

Example 1

Let’s see an example to fetch the values from the Map object.

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Output:

jQuery  AngularJS  Bootstrap  

Example 2

Let’s see an example to fetch the values and keys from the Map object.

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Output:

Fetching values and keys :  jQuery 1  AngularJS 2  Bootstrap 3