经典面试题
console.log('1')
setTimeout(function callback(){
console.log('2')
}, 1000)
new Promise((resolve, reject) => {
console.log('3')
resolve()
})
.then(res => {
console.log('4');
})
console.log('5')
打印出来是?
正确答案是
1,3,5,4,2
建议看这篇,非常易懂哦