JavaScript Map set()
Map.set()
You can add elements to a Map with the set() method:
Example
// Create a Map
const fruits = new Map();
// Set Map Values
fruits.set("apples", 500);
fruits.set("bananas", 300);
fruits.set("oranges", 200);
Try it Yourself »
const fruits = new Map();
// Set Map Values
fruits.set("apples", 500);
fruits.set("bananas", 300);
fruits.set("oranges", 200);
The set() method can also be used to change existing Map values:
Description
The set() method adds an element to a map.
The set() method updates an element in a map.
Syntax
map.set(key, value)
Parameters
Parameter
Description
key
Required.
The element key.
The element key.
value
Required.
The element value.
The element value.
Return Value
Type
Description
Map The map object.
Browser Support
map.set() is an ECMAScript6 (ES6 2015) feature.
JavaScript 2015 is supported in all browsers since June 2017:
| Chrome 51 |
Edge 15 |
Firefox 54 |
Safari 10 |
Opera 38 |
| May 2016 | Apr 2017 | Jun 2017 | Sep 2016 | Jun 2016 |