vue 使用 computed 结合 filter 实现数据的的过滤和排序

<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <title>Vue 测试实例 - 菜鸟教程(runoob.com)</title>
    <script src="https://cdn.staticfile.org/vue/2.2.2/vue.min.js"></script>
</head>

<body>
    <div id="app">
        <ul>
            <template v-for="booksV in filterbooks">
                <li>{{booksV.name}}</li>
                <li>{{booksV.author}}</li>
            </template>
        </ul>
    </div>

    <script>
        new Vue({
            el: '#app',
            data: {
                books: [{
                    name: "名字一",
                    author: "1111"
                }, {
                    name: "名字二",
                    author: "2222222222222"
                }, {
                    name: "名字三",
                    author: "33333333333333333"
                }, {
                    name: "名字四",
                    author: "44444444444444444444"
                }]
            },
            computed: { //修改内容并且排序
                filterbooks: function() {
                    var filterbooksArr = [];
                    var filterbooksArr = this.books.filter(function(book) {
                        return book.name = book.name + "=============="
                    });

                    filterbooksArr.sort(function(a, b) {
                        return a.author.length < b.author
                    })
                    return filterbooksArr
                }

            }
        })
    </script>
</body>

</html>
　　结果是: