JavaScript Map size Property
Last Updated :
26 May, 2023
Map is a collection of elements where each element is stored as a Key, value pair. Map.size property is used to return the number of Key, and value pairs stored in a map.
Syntax:
mapName.size
Return Value: An integer representing number of Key, value pair stored in a map.
The examples below illustrate the Map.size property:
Example 1:
Javascript
let GFGmap = new Map();
GFGmap.set( '1' , 'Apple' );
GFGmapset( '2' , 'Banana' );
GFGmap.set( '3' , 'Mango' );
console.log(GFGmap.size);
|
Output:
3
Example 2:
Javascript
let GFGmap = new Map();
GFGmap.set( 'a' , 'Apple' );
GFGmapset( 'b' , 'Ball' );
GFGmap.set( 'c' , 'Cat' );
GFGmap.set( 'd' , 'Dog' );
console.log(GFGmap.size);
|
Output:
4
Supported Browsers:
- Google Chrome 38.0
- Microsoft Edge 12.0
- Firefox 13.0
- Internet Explorer 11.0
- Opera 25.0
- Safari 8.0
We have a complete list of Javascript Map methods, to check those please go through this JavaScript Map Complete Reference article.
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