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
AudioParamvalue associated with the string key, orundefinedif 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
AudioParamvalues in the map in insertion order.