<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style type="text/css">
.isFinished{color:red;}
</style>
<script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
<script type="text/javascript">
window.onload = function () {
new Vue ({
el: '#app',
data: {
title: 'this is title demo',
items: [],
newItem: '',
},
methods:{
finished: function (item) {
item.isFinished = !item.isFinished;
},
add: function () {
this.items.push({
label: this.newItem,
isFinished: false,
});
this.newItem = '';
}
},
})
}
</script>
</head>
<body>
<div id='app'>
<input type="text" v-model='newItem' v-on:keyup.enter="add">
<p v-text='title'></p>
<div v-for="item in items">
<li v-text="item.label" v-bind:class="{isFinished: item.isFinished}" v-on:click="finished(item)"></li>
</div>
</div>
</body>
</html>