JavaScript Map get() Method

by Online Tutorials Library July 22, 2022

JavaScript Map get() method

The JavaScript map get() method returns the value of specified key of an element from a Map object.

Syntax

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

Parameter

key – The key to be searched.

Return

The value of specified key.

JavaScript Map get() method example

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

Example 1

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

  <script>  var map=new Map();  map.set(1,”jQuery”);  map.set(2,”AngularJS”);  map.set(3,”Bootstrap”);    document.writeln(map.get(1)+”<br>”);  document.writeln(map.get(2)+”<br>”);  document.writeln(map.get(3));  </script>  

Test it Now

Output:

jQuery  AngularJS  Bootstrap

Example 2

Let’s see an example to determine the result when map object doesn?t contain the specified key element.

  <script>  var map=new Map();  map.set(1,”jQuery”);  map.set(2,”AngularJS”);  map.set(3,”Bootstrap”);    document.writeln(map.get(5)); //returns undefined  </script>  

Test it Now

Output:

undefined

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