@nozbe/watermelondb/src/utils/fp/forEachAsync/index.js

Build powerful React Native and React web apps that scale from hundreds to tens of thousands of records and remain fast

// @flow

// Executes async action sequentially for each element in list (same as async for-of)
export default function forEachAsync<T>(list: T[], action: (T) => Promise<void>): Promise<void> {
  return list.reduce(
    (promiseChain, element) => promiseChain.then(() => action(element)),
    Promise.resolve(),
  )
}