es6--async--await

async function myFunction() {
  try {
         await somethingThatReturnsAPromise();
    }  catch (err) {
       console.log(err)  
    }  
}




async function myFunction() {
  await somethingThatReturnsAPromise().catch(function(err){console.log(err);})  
    
}

  

原文地址:https://www.cnblogs.com/jkr666666/p/9145001.html