async/await has been in TypeScript for a while, but currently depend on generators, so don't down-level to <= ES5 emit (that work is in progress). With the lat

async/await has been in TypeScript for a while, but currently depend on generators, so don't down-level to <= ES5 emit (that work is in progress). With the latest Node releases and modern browsers supporting generators today, you can target ES6 and use async/await today if you can target those environments. https://blogs.msdn.microsoft.com/typescript/2015/11/03/what-about-asyncawait/ https://blogs.msdn.microsoft.com/typescript/2015/11/03/what-...