vue.js入门之第八篇

作者: 平安喜乐698 | 来源:发表于2019-03-09 23:22 被阅读0次

目录

router-link组件（路由）实现多视图单个页面

需引入
<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>

<div id="app">
  <h1>Hello App!</h1>
  <p>
    <!-- 使用 router-link 组件来导航. -->
    <!-- 通过传入 `to` 属性指定链接. -->
    <!-- <router-link> 默认会被渲染成一个 `<a>` 标签 -->
    <router-link to="/foo">Go to Foo</router-link>
    <router-link to="/bar">Go to Bar</router-link>
  </p>
  <!-- 路由匹配到的组件将渲染在这里 -->
  <router-view></router-view>
</div>

<script>
// 0. 如果使用模块化机制编程，導入Vue和VueRouter，要调用 Vue.use(VueRouter)

// 1. 定义（路由）组件。
// 可以从其他文件 import 进来
const Foo = { template: '<div>foo</div>' }
const Bar = { template: '<div>bar</div>' }

// 2. 定义路由
// 每个路由应该映射一个组件。 其中"component" 可以是
// 通过 Vue.extend() 创建的组件构造器，
// 或者，只是一个组件配置对象。
// 我们晚点再讨论嵌套路由。
const routes = [
  { path: '/foo', component: Foo },
  { path: '/bar', component: Bar }
]

// 3. 创建 router 实例，然后传 `routes` 配置
// 你还可以传别的配置参数, 不过先这么简单着吧。
const router = new VueRouter({
  routes // （缩写）相当于 routes: routes
})

// 4. 创建和挂载根实例。
// 记得要通过 router 配置参数注入路由，
// 从而让整个应用都有路由功能
const app = new Vue({
  router
}).$mount('#app')

// 现在，应用已经启动了！
</script>

<router-link> 相关属性

1、to
    表示目标路由的链接。 当被点击后，内部会立刻把 to 的值传到 router.push()

<!-- 字符串 -->
<router-link to="home">Home</router-link>

<!-- 使用 v-bind 的 JS 表达式 -->
<router-link v-bind:to="'home'">Home</router-link>

<!-- 不写 v-bind 也可以，就像绑定别的属性一样 -->
<router-link :to="'home'">Home</router-link>
<!-- 同上 -->
<router-link :to="{ path: 'home' }">Home</router-link>

<!-- 命名的路由 -->
<router-link :to="{ name: 'user', params: { userId: 123 }}">User</router-link>

<!-- 带查询参数，下面的结果为 /register?plan=private -->
<router-link :to="{ path: 'register', query: { plan: 'private' }}">Register</router-link>

2、replace 
    当点击时，会调用 router.replace() 而不是 router.push()，导航后不会留下 history 记录。

<router-link :to="{ path: '/abc'}" replace></router-link>

3、append
    在当前 (相对) 路径前添加基路径。

<router-link :to="{ path: 'relative/path'}" append></router-link>

4、tag

<router-link to="/foo" tag="li">foo</router-link>
<!-- 渲染结果 -->
<li>foo</li>

5、active-class
    设置 链接激活时使用的 CSS 类名
  
<style>
   ._active{
      background-color : red;
   }
</style>
<p>
   <router-link v-bind:to = "{ path: '/route1'}" active-class = "_active">Router Link 1</router-link>
   <router-link v-bind:to = "{ path: '/route2'}" tag = "span">Router Link 2</router-link>
</p>

6、exact-active-class
    配置当链接被精确匹配的时候应该激活的 class。可以通过以下代码来替代。

<p>
   <router-link v-bind:to = "{ path: '/route1'}" exact-active-class = "_active">Router Link 1</router-link>
   <router-link v-bind:to = "{ path: '/route2'}" tag = "span">Router Link 2</router-link>
</p>

7、event
    声明可以用来触发导航的事件。可以是一个字符串或是一个包含字符串的数组。

<router-link v-bind:to = "{ path: '/route1'}" event = "mouseover">Router Link 1</router-link>
以上代码设置了 event 为 mouseover ，及在鼠标移动到 Router Link 1 上时导航的 HTML 内容会发生改变。

导航栏

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 导航菜单</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
    <style>

    *{
        margin:0;
        padding:0;
    }

    body{
        font:15px/1.3 'Open Sans', sans-serif;
        color: #5e5b64;
        text-align:center;
    }

    a, a:visited {
        outline:none;
        color:#389dc1;
    }

    a:hover{
        text-decoration:none;
    }

    section, footer, header, aside, nav{
        display: block;
    }


    nav{
        display:inline-block;
        margin:60px auto 45px;
        background-color:#5597b4;
        box-shadow:0 1px 1px #ccc;
        border-radius:2px;
    }

    nav a{
        display:inline-block;
        padding: 18px 30px;
        color:#fff !important;
        font-weight:bold;
        font-size:16px;
        text-decoration:none !important;
        line-height:1;
        text-transform: uppercase;
        background-color:transparent;

        -webkit-transition:background-color 0.25s;
        -moz-transition:background-color 0.25s;
        transition:background-color 0.25s;
    }

    nav a:first-child{
        border-radius:2px 0 0 2px;
    }

    nav a:last-child{
        border-radius:0 2px 2px 0;
    }

    nav.home .home,
    nav.projects .projects,
    nav.services .services,
    nav.contact .contact{
        background-color:#e35885;
    }

    p{
        font-size:22px;
        font-weight:bold;
        color:#7d9098;
    }

    p b{
        color:#ffffff;
        display:inline-block;
        padding:5px 10px;
        background-color:#c4d7e0;
        border-radius:2px;
        text-transform:uppercase;
        font-size:18px;
    }

    </style>

</head>
<body>

<div id="main">

    <!-- 激活的菜单样式为  active 类 -->
    <!-- 为了阻止链接在点击时跳转，我们使用了 "prevent" 修饰符 (preventDefault 的简称)。 -->
    <nav v-bind:class="active" v-on:click.prevent>
        <!-- 当菜单上的链接被点击时，我们调用了 makeActive 方法, 该方法在 Vue 实例中创建。 -->
        <a href="#" class="home" v-on:click="makeActive('home')">Home</a>
        <a href="#" class="projects" v-on:click="makeActive('projects')">Projects</a>
        <a href="#" class="services" v-on:click="makeActive('services')">Services</a>
        <a href="#" class="contact" v-on:click="makeActive('contact')">Contact</a>
    </nav>

    <!-- 以下 "active" 变量会根据当前选中的值来自动变换 -->
    <p>您选择了 <b>{{active}} 菜单</b></p>
</div>

<script>
// 创建一个新的 Vue 实例
var demo = new Vue({
    // DOM 元素，挂载视图模型
    el: '#main',

    // 定义属性，并设置初始值
    data: {
        active: 'home'
    },

    // 点击菜单使用的函数
    methods: {
        makeActive: function(item){
            // 模型改变，视图会自动更新
            this.active = item;
        }
    }
});
</script>
</body>
</html>

编辑文本

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 文本编辑</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
    <style>
    /* 隐藏未编译的变量 */

    [v-cloak] {
      display: none;
    }

    *{
        margin:0;
        padding:0;
    }

    body{
        font:15px/1.3 'Open Sans', sans-serif;
        color: #5e5b64;
        text-align:center;
    }

    a, a:visited {
        outline:none;
        color:#389dc1;
    }

    a:hover{
        text-decoration:none;
    }

    section, footer, header, aside, nav{
        display: block;
    }


    /*-------------------------
        编辑框
    --------------------------*/

    .tooltip{
        background-color:#5c9bb7;

        background-image:-webkit-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:-moz-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:linear-gradient(top, #5c9bb7, #5392ad);

        box-shadow: 0 1px 1px #ccc;
        border-radius:3px;
        width: 290px;
        padding: 10px;

        position: absolute;
        left:50%;
        margin-left:-150px;
        top: 80px;
    }

    .tooltip:after{
        /* 提示信息 */
        content:'';
        position:absolute;
        border:6px solid #5190ac;
        border-color:#5190ac transparent transparent;
        width:0;
        height:0;
        bottom:-12px;
        left:50%;
        margin-left:-6px;
    }

    .tooltip input{
        border: none;
        width: 100%;
        line-height: 34px;
        border-radius: 3px;
        box-shadow: 0 2px 6px #bbb inset;
        text-align: center;
        font-size: 16px;
        font-family: inherit;
        color: #8d9395;
        font-weight: bold;
        outline: none;
    }

    p{
        font-size:22px;
        font-weight:bold;
        color:#6d8088;
        height: 30px;
        cursor:default;
    }

    p b{
        color:#ffffff;
        display:inline-block;
        padding:5px 10px;
        background-color:#c4d7e0;
        border-radius:2px;
        text-transform:uppercase;
        font-size:18px;
    }

    p:before{
        content:'✎';
        display:inline-block;
        margin-right:5px;
        font-weight:normal;
        vertical-align: text-bottom;
    }

    #main{
        height:300px;
        position:relative;
        padding-top: 150px;
    }
    </style>

</head>
<body>

<!-- v-cloak 隐藏未编译的变量，直到 Vue 实例准备就绪。 -->
<!-- 元素点击后 hideTooltp() 方法被调用 -->

<div id="main" v-cloak v-on:click="hideTooltip">

    <!-- 这是一个提示框
         v-on:clock.stop 是一个点击事件处理器，stop 修饰符用于阻止事件传递
         v-if 用来判断 show_tooltip 为 true 时才显示 -->

    <div class="tooltip" v-on:click.stop v-if="show_tooltip">

        <!-- v-model 绑定了文本域的内容
         在文本域内容改变时，对应的变量也会实时改变  -->

        <input type="text" v-model="text_content" />
    </div>

    <!-- 点击后调用 "toggleTooltip" 方法并阻止事件传递 -->

    <!--  "text_content" 变量根据文本域内容的变化而变化 -->

    <p v-on:click.stop="toggleTooltip">{{text_content}}</p>

</div>

<script>
var demo = new Vue({
    el: '#main',
    data: {
        show_tooltip: false,
        text_content: '点我，并编辑内容。'
    },
    methods: {
        hideTooltip: function(){
            // 在模型改变时，视图也会自动更新
            this.show_tooltip = false;
        },
        toggleTooltip: function(){
            this.show_tooltip = !this.show_tooltip;
        }
    }
})
</script>
</body>
</html>

订单表单

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 订单表单</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
    <style>
    /*  隐藏未编译的变量 */

    [v-cloak] {
      display: none;
    }

    *{
        margin:0;
        padding:0;
    }

    body{
        font:15px/1.3 'Open Sans', sans-serif;
        color: #5e5b64;
        text-align:center;
    }

    a, a:visited {
        outline:none;
        color:#389dc1;
    }

    a:hover{
        text-decoration:none;
    }

    section, footer, header, aside, nav{
        display: block;
    }

    /*-------------------------
        订单表单
    --------------------------*/

    form{
        background-color: #61a1bc;
        border-radius: 2px;
        box-shadow: 0 1px 1px #ccc;
        width: 400px;
        padding: 35px 60px;
        margin: 50px auto;
    }

    form h1{
        color:#fff;
        font-size:64px;
        font-family:'Cookie', cursive;
        font-weight: normal;
        line-height:1;
        text-shadow:0 3px 0 rgba(0,0,0,0.1);
    }

    form ul{
        list-style:none;
        color:#fff;
        font-size:20px;
        font-weight:bold;
        text-align: left;
        margin:20px 0 15px;
    }

    form ul li{
        padding:20px 30px;
        background-color:#e35885;
        margin-bottom:8px;
        box-shadow:0 1px 1px rgba(0,0,0,0.1);
        cursor:pointer;
    }

    form ul li span{
        float:right;
    }

    form ul li.active{
        background-color:#8ec16d;
    }

    div.total{
        border-top:1px solid rgba(255,255,255,0.5);
        padding:15px 30px;
        font-size:20px;
        font-weight:bold;
        text-align: left;
        color:#fff;
    }

    div.total span{
        float:right;
    }
    </style>

</head>
<body>

<!-- v-cloak 隐藏未编译的变量，直到 Vue 实例准备就绪。 -->

<form id="main" v-cloak>

    <h1>Services</h1>

    <ul>

        <!-- 循环输出 services 数组, 设置选项点击后的样式 -->

        <li v-for="service in services" v-on:click="toggleActive(service)" v-bind:class="{ 'active': service.active}">

            <!-- 显示订单中的服务名，价格
                 Vue.js 定义了货币过滤器，用于格式化价格 -->

            {{service.name}} <span>{{service.price | currency}}</span>

        </li>
    </ul>

    <div class="total">

        <!-- 计算所有服务的价格，并格式化货币 -->

        Total: <span>{{total() | currency}}</span>
        
    </div>

</form>
<script>

// 自定义过滤器 "currency". 
Vue.filter('currency', function (value) {
    return '$' + value.toFixed(2);
});

var demo = new Vue({
    el: '#main',
    data: {
        // 定义模型属性 the model properties. The view will loop
        // 视图将循环输出数组的数据
        services: [
            {
                name: 'Web Development',
                price: 300,
                active:true
            },{
                name: 'Design',
                price: 400,
                active:false
            },{
                name: 'Integration',
                price: 250,
                active:false
            },{
                name: 'Training',
                price: 220,
                active:false
            }
        ]
    },
    methods: {
        toggleActive: function(s){
            s.active = !s.active;
        },
        total: function(){

            var total = 0;

            this.services.forEach(function(s){
                if (s.active){
                    total+= s.price;
                }
            });

           return total;
        }
    }
});
    
</script>
</body>
</html>

切换不同显示布局

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 切换不同显示布局</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
    <style>
    /* 隐藏未编译的变量 */

    [v-cloak] {
      display: none;
    }

    *{
        margin:0;
        padding:0;
    }

    body{
        font:15px/1.3 'Open Sans', sans-serif;
        color: #5e5b64;
        text-align:center;
    }

    a, a:visited {
        outline:none;
        color:#389dc1;
    }

    a:hover{
        text-decoration:none;
    }

    section, footer, header, aside, nav{
        display: block;
    }

    /*-------------------------
        搜索框
    --------------------------*/

    .bar{
        background-color:#5c9bb7;

        background-image:-webkit-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:-moz-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:linear-gradient(top, #5c9bb7, #5392ad);

        box-shadow: 0 1px 1px #ccc;
        border-radius: 2px;
        width: 580px;
        padding: 10px;
        margin: 45px auto 25px;
        position:relative;
        text-align:right;
        line-height: 1;
    }

    .bar a{
        background:#4987a1 center center no-repeat;
        width:32px;
        height:32px;
        display:inline-block;
        text-decoration:none !important;
        margin-right:5px;
        border-radius:2px;
        cursor:pointer;
    }

    .bar a.active{
        background-color:#c14694;
    }

    .bar a.list-icon{
        background-image:url(data:image/png;base64,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);
    }

    .bar a.grid-icon{
        background-image:url(data:image/png;base64,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);
    }

    .bar input{
        background:#fff no-repeat 13px 13px;

        border: none;
        width: 100%;
        line-height: 19px;
        padding: 11px 0;

        border-radius: 2px;
        box-shadow: 0 2px 8px #c4c4c4 inset;
        text-align: left;
        font-size: 14px;
        font-family: inherit;
        color: #738289;
        font-weight: bold;
        outline: none;
        text-indent: 40px;
    }

    /*-------------------------
        列表布局
    --------------------------*/

    ul.list{
        list-style: none;
        width: 500px;
        margin: 0 auto;
        text-align: left;
    }

    ul.list li{
        border-bottom: 1px solid #ddd;
        padding: 10px;
        overflow: hidden;
    }

    ul.list li img{
        width:120px;
        height:120px;
        float:left;
        border:none;
    }

    ul.list li p{
        margin-left: 135px;
        font-weight: bold;
        color:#6e7a7f;
    }

    /*-------------------------
        网格布局
    --------------------------*/

    ul.grid{
        list-style: none;
        width: 570px;
        margin: 0 auto;
        text-align: left;
    }

    ul.grid li{
        padding: 2px;
        float:left;
    }

    ul.grid li img{
        width:280px;
        height:280px;
        object-fit: cover;
        display:block;
        border:none;
    }
    </style>

</head>
<body>

<form id="main" v-cloak>

    <div class="bar">

        <!-- 两个按钮用于切换不同的列表布局 -->

        <a class="list-icon" v-bind:class="{ 'active': layout == 'list'}" v-on:click="layout = 'list'"></a>
        <a class="grid-icon" v-bind:class="{ 'active': layout == 'grid'}" v-on:click="layout = 'grid'"></a>
    </div>

    <!-- 我们设置了两套布局页面。使用哪套依赖于 "layout" 绑定 -->

    <ul v-if="layout == 'grid'" class="grid">
        <!-- 使用大图，没有文本 -->
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.large" /></a>
        </li>
    </ul>

    <ul v-if="layout == 'list'" class="list">
        <!-- 使用小图及标题 -->
        <li v-for="a in articles">
            <a v-bind:href="a.url" target="_blank"><img v-bind:src="a.image.small" /></a>
            <p>{{a.title}}</p>
        </li>
    </ul>

</form>
<script>

    var demo = new Vue({
        el: '#main',
        data: {
            // 视图模型，可能的值是 "grid" 或 "list"。
            layout: 'grid',

            articles: [{
                "title": "HTML 教程",
                "url": "http://www.runoob.com/html/html-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/htmlbig.png",
                    "small": "http://static.runoob.com/images/icon/html.png"
                }
            },
            {
                "title": "CSS 教程",
                "url": "http://www.runoob.com/css/css-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/cssbig.png",
                    "small": "http://static.runoob.com/images/icon/css.png"
                }
            },
            {
                "title": "JS 教程",
                "url": "http://www.runoob.com/js/js-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/jsbig.jpeg",
                    "small": "http://static.runoob.com/images/icon/js.png"
                }
            },
            {
                "title": "SQL  教程",
                "url": "http://www.runoob.com/sql/sql-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/sqlbig.png",
                    "small": "http://static.runoob.com/images/icon/sql.png"
                }
            },
            {
                "title": "Ajax 教程",
                "url": "http://www.runoob.com/ajax/ajax-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/ajaxbig.png",
                    "small": "http://static.runoob.com/images/icon/ajax.png"
                }
            },
            {
                "title": "Python 教程",
                "url": "http://www.runoob.com/pyhton/pyhton-tutorial.html",
                "image": {
                    "large": "http://static.runoob.com/images/mix/pythonbig.png",
                    "small": "http://static.runoob.com/images/icon/python.png"
                }
            }]

        }
    });
    
</script>
</body>
</html>

搜索筛选

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Vue.js 搜索页面</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
    
    <style>
    /* 隐藏未编译的变量 */

    [v-cloak] {
      display: none;
    }

    *{
        margin:0;
        padding:0;
    }

    body{
        font:15px/1.3 'Open Sans', sans-serif;
        color: #5e5b64;
        text-align:center;
    }

    a, a:visited {
        outline:none;
        color:#389dc1;
    }

    a:hover{
        text-decoration:none;
    }

    section, footer, header, aside, nav{
        display: block;
    }


    /*-------------------------
        搜索输入框
    --------------------------*/

    .bar{
        background-color:#5c9bb7;

        background-image:-webkit-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:-moz-linear-gradient(top, #5c9bb7, #5392ad);
        background-image:linear-gradient(top, #5c9bb7, #5392ad);

        box-shadow: 0 1px 1px #ccc;
        border-radius: 2px;
        width: 400px;
        padding: 14px;
        margin: 45px auto 20px;
        position:relative;
    }

    .bar input{
        background:#fff no-repeat 13px 13px;
        background-image:url(data:image/png;base64,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);

        border: none;
        width: 100%;
        line-height: 19px;
        padding: 11px 0;

        border-radius: 2px;
        box-shadow: 0 2px 8px #c4c4c4 inset;
        text-align: left;
        font-size: 14px;
        font-family: inherit;
        color: #738289;
        font-weight: bold;
        outline: none;
        text-indent: 40px;
    }

    ul{
        list-style: none;
        width: 428px;
        margin: 0 auto;
        text-align: left;
    }

    ul li{
        border-bottom: 1px solid #ddd;
        padding: 10px;
        overflow: hidden;
    }

    ul li img{
        width:60px;
        height:60px;
        float:left;
        border:none;
    }

    ul li p{
        margin-left: 75px;
        font-weight: bold;
        padding-top: 12px;
        color:#6e7a7f;
    }
    </style>

</head>
<body>

<form id="main" v-cloak>

    <div class="bar">
        <!-- searchString 模型与文本域创建绑定 -->

        <input type="text" v-model="searchString" placeholder="输入搜索内容" />
    </div>

    <ul>
        <!-- 循环输出数据 -->
             
        <li v-for="article in filteredArticles">
            <a v-bind:href="article.url"><img v-bind:src="article.image" /></a>
            <p>{{article.title}}</p>
        </li>
    </ul>

</form>
<script>

var demo = new Vue({
    el: '#main',
    data: {
        searchString: "",

        // 数据模型，实际环境你可以根据 Ajax 来获取

        articles: [
            {
                "title": "What You Need To Know About CSS Variables",
                "url": "http://www.runoob.com/css/css-tutorial.html",
                "image": "http://static.runoob.com/images/icon/css.png"
            },
            {
                "title": "Freebie: 4 Great Looking Pricing Tables",
                "url": "http://www.runoob.com/html/html-tutorial.html",
                "image": "http://static.runoob.com/images/icon/html.png"
            },
            {
                "title": "20 Interesting JavaScript and CSS Libraries for February 2016",
                "url": "http://www.runoob.com/css3/css3-tutorial.html",
                "image": "http://static.runoob.com/images/icon/css3.png"
            },
            {
                "title": "Quick Tip: The Easiest Way To Make Responsive Headers",
                "url": "http://www.runoob.com/css3/css3-tutorial.html",
                "image": "http://static.runoob.com/images/icon/css3.png"
            },
            {
                "title": "Learn SQL In 20 Minutes",
                "url": "http://www.runoob.com/sql/sql-tutorial.html",
                "image": "http://static.runoob.com/images/icon/sql.png"
            },
            {
                "title": "Creating Your First Desktop App With HTML, JS and Electron",
                "url": "http://www.runoob.com/js/js-tutorial.html",
                "image": "http://static.runoob.com/images/icon/html.png"
            }
        ]
    },
    computed: {
        // 计算数学，匹配搜索
        filteredArticles: function () {
            var articles_array = this.articles,
                searchString = this.searchString;

            if(!searchString){
                return articles_array;
            }

            searchString = searchString.trim().toLowerCase();

            articles_array = articles_array.filter(function(item){
                if(item.title.toLowerCase().indexOf(searchString) !== -1){
                    return item;
                }
            })

            // 返回过来后的数组
            return articles_array;;
        }
    }
});
</script>
</body>
</html>

vue.js入门之第八篇

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