@formatjs/intl-enumerator/lib/polyfill.js

Intl.Enumerator polyfill

import { shouldPolyfill } from './should-polyfill';
import { supportedValuesOf } from './src';
if (shouldPolyfill()) {
    Object.defineProperty(Intl, 'supportedValuesOf', {
        value: supportedValuesOf,
        enumerable: true,
        writable: false,
        configurable: false,
    });
}