2821. 延迟每个 Promise 对象的解析

2821. 延迟每个 Promise 对象的解析

type Fn = () => Promise<any>

const delayAll = (functions, ms) => {
  return functions.map(
    (fn) => () =>
      new Promise((resolve, reject) =>
        setTimeout(() => {
          fn().then(resolve).catch(reject)
        }, ms)
      )
  )
}