Readonly
[toReadonly
sizeStatic
Readonly
[species]Returns a specified element from the Map object. If the value that is associated to the provided key is an object, then you will get a reference to that object and any change made to that object will effectively modify it inside the Map.
Returns the element associated with the specified key. If no element is associated with the specified key, undefined is returned.
Stops listening for Map updates.
this
, useful for chaining.
The callback to stop listening for updates on.
Listen for an update to this Map.
this
, useful for chaining.
The callback to run when an update occurs.
Adds a new element with a specified key and value to the Map. If an element with the same key already exists, the element will be updated.
Returns
the number of elements in the Map.