[Scooty]

Making await implicit would make it difficult to manage parallel promises. You would either have to make an exception for Promise.all or add new syntax. It's also not unheard of to have hanging promises (fire and forget).

Types make it easier to catch mistakes early in general. Typescript has a compiler rule 'no-hanging-promises' to help avoid forgetting to await.

[laughinghan]

I think you missed this part: "instead make developers explicitly say when they wish for the result to be async"

So using Promise.all() would be as simple as:

    const results = Promise.all(async fetch(url1), async fetch(url2))