async and await

 it is nth. but changing final function of promise 

function add(a,b){

    return new Promise(function(resolve,reject){

        setTimeout(()=>{

            console.log("hello")

            resolve(a+b)

        },2000)

    })

};

function show(ok){

    console.log("sfhljl")

    console.log(ok)

}

async function showfinal(){

    let var1= await add(10,20);

    console.log(var1)

    let var2=await multiply(var1);

    console.log(var2)

}

showfinal()

console.log("end")