https://devblogs.microsoft.com/typescript/a-proposal-for-type-syntax-in-javascript/ https://devblogs.microsoft.com/typescript/a-proposal-for-typ... Has additio

https://devblogs.microsoft.com/typescript/a-proposal-for-type-syntax-in-javascript/ https://devblogs.microsoft.com/typescript/a-proposal-for-typ... Has additional context on this proposal and has previously been linked here.