let users interact with your app, we can use the v-on directive to attach event listeners that invoke methods on our Vue instances:
<div id="app-5">
<p>{{ message }}</p>
<button v-on:click="reverseMessage">Reverse Message</button>
</div>
var app5 = new Vue({
el: '#app-5',
data: {
message: 'Hello Vue.js!'
},
methods: {
reverseMessage: function () {
this.message = this.message.split('').reverse().join('')
}
}
})
Hello Vue.js!
Reverse Message
Note that in this method we update the state of our app without touching the DOM - all DOM manipulations are handled by Vue, and the code you write is focused on the underlying logic.
Vue also provides the v-model directive that makes two-way binding between form input and app state a breeze:
<div id="app-6">
<p>{{ message }}</p>
<input v-model="message">
</div>
var app6 = new Vue({
el: '#app-6',
data: {
message: 'Hello Vue!'
}
})
Hello Vue!
