bilibili

> //示例1 > console.log(foo.bar()); > //示例2 > console.log((foo.bar)()); > //示例3 > console.log((foo.bar = foo.bar)()); > //示例4 > console.log((false || foo.bar)()); > //示例5 > console.log((foo.bar, foo.bar)()); > 请问这个题又如何解释？ 示例 3， 4，...

> ```js > let x = new Promise((resolve, reject) => { > resolve( > new Promise((resolve, reject) => { > resolve(2); > }) > ); > }).then(res => { >...