VUE生命周期钩子

var app=new Vue({
    el:'#app',
    data:{
        a:2
    },
    beforeCreate:function(){
        console.log("实例创建之前");
    },
    created:function(){
        console.log("a is:"+this.a);
        console.log("实例创建之后");
    },
    beforeMount:function(){
        console.log("模板编译/挂载之前")
    },
    mounted:function(){
        console.log("模板编译/挂载之后")
    },
    beforeupdated:function(){
        console.log("实例更新之前")
    },
    updated:function(){
        console.log("实例更新之后")
    },
    beforeDestory:function(){
        console.log("组件销毁前调用")
    },
    destroyed:function(){
        console.log("组件销毁后调用")
    }
})