MediaKeyStatusMap
        
        
          
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                  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.sizeRead only- 
Returns the number of key/value pairs in the status map.
 
Instance methods
MediaKeyStatusMap.entries()Read only- 
Returns a new
Iteratorobject containing an array of[key, value]for each element in the status map, in insertion order. MediaKeyStatusMap.forEach()Read only- 
Calls
callbackonce for each key-value pair in the status map, in insertion order. Ifargumentis present it will be passed to the callback. MediaKeyStatusMap.get()Read only- 
Returns the value associated with the given key, or
undefinedif 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
Iteratorobject containing keys for each element in the status map, in insertion order. MediaKeyStatusMap.values()Read only- 
Returns a new
Iteratorobject containing values for each element in the status map, in insertion order. MediaKeyStatusMap[Symbol.iterator]()Read only- 
Returns a new
Iteratorobject 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
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