difference async behavior forEach and for statement

const promiseFunc = () => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve();
    }, 2000)
  })
}

const forEachAsync = () => {
  [1, 2, 3, 4, 5].forEach(async (index) => {
    console.log(`${index} start!`)
    await promiseFunc();
    console.log(`${index} finish!`)
  });
}

const forAsync = async () => {
  for(let i=0;i<5;i++) {
    console.log(`for ${i} start!`)
    await promiseFunc();
    console.log(`for ${i} finish!`)
  }
}

forEachAsync();
forAsync();