vue銷毀當前組件的事件監聽

mounted(){
        this.loadlist()
        this.userlist()
        this.browserRedirect()
        window.addEventListener("scroll",this.handleFun)
},
destroyed(){
        window.removeEventListener('scroll', this.handleFun);
},
methods:{
        handleFun(){
            var scrollTop = document.documentElement.scrollTop || document.body.scrollTop; 
            var windowHeight = document.documentElement.clientHeight || document.body.clientHeight; 
            var scrollHeight = document.documentElement.scrollHeight || document.body.scrollHeight; 
            if (scrollTop + windowHeight == scrollHeight) { 
                this.page = this.page+1
                this.loadlist()
            }
        },
}