The Map() creates Map objects.
Map() constructor
Syntax
new Map() new Map(iterable)
Parameters
Examples
Creating a new Map
let myMap = new Map([ [1, 'one'], [2, 'two'], [3, 'three'], ])
Specifications
| Specification |
|---|
| ECMAScript Language Specification # sec-map-constructor |
Browser compatibility
| Desktop | Mobile | Server | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | Deno | Node.js | |
Map |
38
|
12
|
13
|
11
|
25
|
8
|
38
|
38
|
14
|
25
|
8
|
3.0
|
1.0
|
0.12.0
0.10.0
|
iterable_allowed |
38
|
12
|
13
|
No
|
25
|
9
|
38
|
38
|
14
|
25
|
9
|
3.0
|
1.0
|
0.12.0
|
new_required |
38
|
12
|
42
|
11
|
25
|
9
|
38
|
38
|
42
|
25
|
9
|
3.0
|
1.0
|
0.12.0
|
null_allowed |
38
|
12
|
37
|
11
|
25
|
9
|
38
|
38
|
37
|
25
|
9
|
3.0
|
1.0
|
0.12.0
0.10.0
|
See also
© 2005–2022 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/Map
