laravel vuejs message box

1<template>
2    <div class="alert alert-success" role="alert" v-show="show">
3        {{ body }}
4    </div>
5</template>
6    
7<script>
8    export default {
9        props: ['message'],
10        data() {
11            return {
12                show : false,
13                body : ''
14            }
15        },
16        created() {
17            if(this.message) {
18                this.flash(this.message)
19            }
20            window.events.$on('flash',(message) => this.flash(message))
21        },
22        methods: {
23            flash(message) {
24                this.show = true
25                this.body = message
26   
27                setTimeout(() => {
28                    this.hide()
29                },3000)
30            },
31            hide() {
32                this.show = false
33            }
34        }
35    }
36</script>
37