JavaScript Map get() Method

JavaScript Map get() Method with example, javascript map methods, abs() method, round() method, ceil() method, floor() method, pow() method, random() method, sqrt() method, max() method, min() method, log() method, sin() method, cos() method, tan() method etc.

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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:

mapObj.get(key)

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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