multiple-request.js

async function loadInitialData(){

   //let's assume that each request will take 600ms   

  try {
    const user = await fetchUser(); // run 1st
    const product = await fetchProduct(); // wait 600ms for user req to run
    const other = await fetchOther(); // wait 600ms for product req to run

  } catch(error) {
    console.log(error);
  }
  
}

// fetch user + fetch product + fetch other: total 1800ms