vue-router中beforeRouteLeave，怎么用来禁止用户在还未保存修改前突然离开

Question

Answer 1

beforeRouteLeave (to, from, next) {
    ...
    next(false)
    ...
}

调用 next(false) 拒绝路由跳转即可

Answer 2

beforeRouteLeave(to, from, next) {
    next(confirm('确认不保存修改直接离开么？'));
}

next(true) 离开，next(false)不离开