Какое предпочтительнее?
async function someTest(a,b)=>{...};
var/let/const someTest=async function(a,b){...};
var/let/const someTest=async(a,b)=>{...};
var/let/const someObj={someTest:async function(a,b){...}};
var/let/const someObj={someTest:async(a,b)=>{...}};
Спасибо!