ES6新特性八：async函数用法实例详解(2)

//耗时写法 let foo = await getFoo(); let bar = await getBar(); //同时触发 // 写法一 let [foo, bar] = await Promise.all([getFoo(), getBar()]); // 写法二 let fooPromise = getFoo(); let barPromise = getBar(); let foo = await fooPromise; let bar = await barPromise;