let x = async () => {
  return 1;
}

let y = async () => {
  return 2;
}

let z = async () => {
    try {
        let a = await x();
        let b = await y();
        console.log(a,b)
    } catch (err) {
        console.log(err)
    }
}

z().catch(console.log)