vue 基礎入門筆記 06

click_man發表於2019-08-15
Vue筆記
 * 簡單的新增 刪除 檢索
<!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>
    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
    <!-- 最新版本的 Bootstrap 核心 CSS 檔案 -->
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css"
        integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>

<body>
    <div id="app">
        <div class="panel panel-primary">
            <div class="panel-heading">
                <h3 class="panel-title">新增品牌</h3>
            </div>
            <div class="panel-body form-inline">
                <label for="">
                    ID:
                    <input type="text" v-model='id' name="" id="">
                </label>
                <label>
                    Name
                    <input type="text" v-model='name' name="" id="input" class="form-control" value=""
                        required="required" pattern="" title="">
                </label>

                <button type="button" @click='add' class="btn btn-primary">新增</button>

                <label for="input-id">
                    搜尋關鍵字
                    <input v-model="keywords" type="text" name="" id="input" class="form-control" 
                        required="required" >
                </label>

            </div>
        </div>

        <table class="table table-bordered  table-hover">
            <thead>
                <tr>
                    <th>id</th>
                    <th>name</th>
                    <th>ctime</th>
                    <th>opt</th>
                    <th></th>
                </tr>
            </thead>
            <tbody>
                <tr v-for="item in search(keywords)" :key="item.id">
                    <td>{{item.id}}</td>
                    <td>{{item.name}}</td>
                    <td>{{item.ctime}}</td>
                    <td><a href="" @click.prevent='del(item.id)'>刪除</a></td>
                </tr>
            </tbody>
        </table>

    </div>
    <script>
        var vm = new Vue({
            el: '#app',
            data: {
                id: '',
                name: '',
                list: [
                    { 'id': 1, 'name': '賓士', 'ctime': new Date() },
                    { 'id': 2, 'name': '寶馬', 'ctime': new Date() },
                ],
                keywords: ''
            },
            methods: {
                // 搜尋
                search(keywords){
                    // 過濾符合條件的新陣列
                    return this.list.filter(item=>{
                        // 字串包含返回true
                        if(item.name.includes(keywords))
                           return item
                    })
                },
                // 新增
                add() {
                    let car = { 'id': this.id, 'name': this.name, 'ctime': new Date() }
                    this.list.push(car)
                    this.name = this.id = ''
                },
                // 刪除
                del(id) {
                    // some()是對陣列中每一項執行給定函式，如果該函式對任一項返回true，則返回true
                    this.list.some((item, index) => {
                        if (item.id === id) {
                            this.list.splice(index, 1)
                            return true
                        }
                    })
                    // findIndex方法返回傳入一個測試條件（函式）符合條件的陣列第一個元素位置
                    // let index = this.list.findIndex(item => {
                    //     if (item.id == id)
                    //         return true
                    // })
                    // this.list.splice(index, 1)
                }
            }
        });
        Vue.config.devtools = true;
    </script>
</body>
</html>

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