await.ops proposal

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Introduce await.all / await.race / await.allSettled / await.any to simplify the usage of Promises

Stage: 1

Champions: Jack Works, Jordan Harband

Motivation

• To simplify the usage of a set of Promises. (Previous discussions: https://es.discourse.group/t/allow-awaiting-on-arrays/178/19)
• To simplify the usage of concurrent for loop in async functions.

Usage:

// before
await Promise.all(users.map(async x => fetchProfile(x.id)))

// after
await.all users.map(async x => fetchProfile(x.id))

Syntax:

await.all expr
// eq: await Promise.all(expr)

await.race expr
// eq: await Promise.race(expr)

await.allSettled expr
// eq: await Promise.allSettled(expr)

await.any expr
// eq: await Promise.any(expr)