Create a angular like deferred object with plain javascript (ES6)

Deferred.js

class Deferred {
    constructor() {
        this.promise = new Promise((resolve, reject) => {
            this.reject = reject;
            this.resolve = resolve;
        });
    }

    resolve(value) {
        this.resolve(value);
    }

    reject(reason) {
        this.reject(reason);
    }

    then(...args) {
        return this.promise.then(...args);
    }

    catch(...args) {
        return this.promise.catch(...args);
    }
}

export default Deferred;