Force V8 to use fast properties for an object
Use %HasFastProperties(object) and --allow-natives-syntax to check whether an object already has fast properties.
$ npm install to-fast-properties
import toFastProperties from 'to-fast-properties';
const object = {
foo: true,
bar: true
};
delete object.foo;
// `object` now has slow properties
toFastProperties(object);
// `object` now has fast properties