FinalizationRegistry() constructor

The FinalizationRegistry constructor creates a FinalizationRegistry object that uses the given callback.

Syntax

new FinalizationRegistry([callback]);

Parameters

callback Optional

The callback function this registry should use. If provided, this must be a function.

Examples

Creating a new registry

You create the registry passing in the callback:

const registry = new FinalizationRegistry(heldValue => {
  // ....
});

Specifications

Browser compatibility

See also

• FinalizationRegistry