• 自定义指令-配置传参以及修饰符


    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <style>
            .card{
                width: 200px;
                background: #ccc;
                padding: 10px;
                margin: 5px;
            }
        </style>
    </head>
    <body>
    <div id="app">
        <div v-pin:true.bottom.right="card1.pinned" class="card">
            <button @click="card1.pinned = !card1.pinned">点我啊~</button>
            this is my first card!
            this is my first card!
            this is my first card!
            this is my first card!
            this is my first card!
        </div>
        <div v-pin.top.right="card2.pinned" class="card">
            <a @click="card2.pinned = !card2.pinned" href="#">please touch me</a>
            this is my second card!
            this is my second card!
            this is my second card!
            this is my second card!
            this is my second card!
        </div>
        <div>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
            this is my test code@!
            <br>
        </div>
    </div>
    
    <script src="../lib/vue.js"></script>
    <script src="js/main.js"></script>
    </body>
    </html>
    Vue.directive("pin", function (el, binding) {
        var pinned = binding.value;
        var position = binding.modifiers;             //获取属性的函数
        var warning = binding.arg;                   //获取属性的函数
        // console.log("position:",position);
        if (pinned) {
            el.style.position = "fixed";
            for (var key in position) {
                if (position[key]) {
                    el.style[key] = "20px"
                }
            }if(warning === "true"){
                el.style.background = "red"
            }
        } else {
            el.style.position = "static"
        }
    });
    
    var app = new Vue({
        el: "#app",
        data: {
            card1: {
                pinned: false
            },
            card2: {
                pinned: false
            }
        }
    });
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  • 原文地址:https://www.cnblogs.com/52-qq/p/8386913.html
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