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Discussion on: 9 tricks that separate a pro Typescript developer from an noob 😎

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Replies for: Nice! The tips on type inference and literal types are particularly handy, and I appreciate how you've broken things down into easily digestible bi...

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Tapajyoti Bose •

The only difference is when using async, the return type gets wrapped by a Promise

const asyncFn = async () => 0; // type AsyncFn = () => Promise<number>
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When you await, the Promise gets unwrapped & you can use it as a regular value

const func = async () => {
  const result = await asyncFn(); // type Result = number
}
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Everything else mentioned in the article still holds true regardless whether you are using Promises or not