// async/await 优雅处理方式
// Elegant handling of async/await
async function errorCaptured(asyncFunc) {
  try {
    const res = await asyncFunc()
    return [null, res]
  }
  catch (e) {
    return [e, null]
  }
}

function asyncFunc() {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      Math.random() > 0.5 ? resolve('success') : reject('error')
    }, 1000)
  })
}

async function func() {
  const [err, res] = await errorCaptured(asyncFunc)
  console.log('res', res)
  console.log('err', err)
}

func()