I don’t think there’ll ever be typed dictionaries (which are a fairly high-level data structure). There is, however, a proposal for typed objects: <a href="https:&#x2F;&#x2F;github.com&#x2F;dslomov&#x2F;typed-objects-es7" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dslomov&#x2F;typed-objects-es7</a>