async await Promise.all

async getaaa()
async getbbb()
async getccc()

=======new way=======
async  refreshall(){

  await Promise.all( xxxxxx.map(async (value, index) =>{
    aaa = await getaaa()
  }))

  await Promise.all( xxxxxx.map(async (value, index) =>{
     bbb = await getbbb()

  }))

await Promise.all( xxxxxx.map(async (value, index) =>{

ccc = await getccc()

  }))

}

=======old way=======
async  refreshall(){

  await Promise.all( xxxxxx.map(async (value, index) =>{
    aaa = await getaaa()
    bbb = await getbbb()
    ccc = await getccc()

  }))

}

1. map usually return something, here just throw
2. if use foreach(), get error.  Like  foreach is not function, can’t async await.

old way  aaa order is good, but bbb ccc order is bad.
new way  all aaa bbb ccc order is ok.