AudioParamMap

The AudioParamMap interface of the Web Audio API represents an iterable and read-only set of multiple audio parameters.

An AudioParamMap instance is a read-only Map-like object, in which each key is the name string for a parameter, and the corresponding value is an AudioParam containing the value of that parameter.

Instance properties

The following methods are available to all read-only Map-like objects (the below links are to the Map global object reference page).

• size
  • : Returns the number of entries in the map.

Instance methods

The following methods are available to all read-only Map-like objects (the below links are to the Map global object reference page).

• entries()
  • : Returns a new iterator object that yields entries in [key, value] pairs in the map in insertion order.
• forEach()
  • : Calls a provided callback function once for each value and key present in the map, in insertion order.
• get()
  • : Returns the AudioParam value associated with the string key, or undefined if there is none.
• has()
  • : Returns a boolean indicating whether a key is present in the map or not.
• keys()
  • : Returns a new iterator object that yields the string keys in the map in insertion order.
• values()
  • : Returns a new iterator object that yields the AudioParam values in the map in insertion order.

Specifications

Browser compatibility