W3cubDocs

/Web APIs

MediaKeyStatusMap

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨March 2019⁩.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The MediaKeyStatusMap interface of the Encrypted Media Extensions API is a read-only map of media key statuses by key IDs.

Instance properties

MediaKeyStatusMap.size Read only

Returns the number of key/value pairs in the status map.

Instance methods

MediaKeyStatusMap.entries() Read only

Returns a new Iterator object containing an array of [key, value] for each element in the status map, in insertion order.

MediaKeyStatusMap.forEach() Read only

Calls callback once for each key-value pair in the status map, in insertion order. If argument is present it will be passed to the callback.

MediaKeyStatusMap.get() Read only

Returns the value associated with the given key, or undefined if there is none.

MediaKeyStatusMap.has() Read only

Returns a boolean asserting whether a value has been associated with the given key.

MediaKeyStatusMap.keys() Read only

Returns a new Iterator object containing keys for each element in the status map, in insertion order.

MediaKeyStatusMap.values() Read only

Returns a new Iterator object containing values for each element in the status map, in insertion order.

MediaKeyStatusMap[Symbol.iterator]() Read only

Returns a new Iterator object containing an array of [key, value] for each element in the status map, in insertion order.

Specifications

Specification
Encrypted Media Extensions>
# mediakeystatusmap-interface>

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
@@iterator 42 16 45 29 12.1 42 45 29 12.2 4.0 43 12.2
MediaKeyStatusMap 42 13 38 29 12.1 42 38 29 12.2 4.0 43 12.2
entries 42 16 38 29 12.1 42 38 29 12.2 4.0 43 12.2
forEach 42 13 47 29 12.1 42 47 29 12.2 4.0 43 12.2
get 42 13 45 29 12.1 42 45 29 12.2 4.0 43 12.2
has 42 13 45 29 12.1 42 45 29 12.2 4.0 43 12.2
keys 42 16 38 29 12.1 42 38 29 12.2 4.0 43 12.2
size 42 13 38 29 12.1 42 38 29 12.2 4.0 43 12.2
values 42 16 38 29 12.1 42 38 29 12.2 4.0 43 12.2

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/MediaKeyStatusMap