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 --save to-fast-properties
const toFastProperties = require('to-fast-properties'); const obj = { foo: true, bar: true }; delete obj.foo; // `obj` now has slow properties toFastProperties(obj); // `obj` now has fast properties
MIT © Petka Antonov, John-David Dalton, Sindre Sorhus