vue阻止事件

1.事情對(duì)象

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vue阻止事件

<!DOCTYPE html><html><head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        console.log(event);   //event   這個(gè)就是事件對(duì)象了                    }
                }
            });
        }    </script></head><body>
   <div id="box">
        <input type="button" value="按鈕" @click="show($event)"> 
    </div></body></html>

vue阻止事件

通過(guò)show($event)把事件對(duì)象傳到方法里

2.事件冒泡

vue阻止事件

<!DOCTYPE html><html><head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(){
                        alert(1);
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }    </script></head><body>
    <div id="box">
        <div @click="show1()">
            <input type="button" value="按鈕" @click="show()"> 
        </div>
    </div></body></html>

vue阻止事件

點(diǎn)擊按鈕的話他會(huì)，執(zhí)行show ,show1方法，依次彈出1，2。

怎么來(lái)阻止

<1> 利用我們上面講過(guò)的event對(duì)象: event.cancelBubble = true; //這種就阻止了

vue阻止事件

<!DOCTYPE html><html><head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        alert(1);
                        event.cancelBubble = true;
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }    </script></head><body>
   <div id="box">
        <div @click="show1()">
            <input type="button" value="按鈕" @click="show($event)"> 
        </div>
    </div></body></html>

vue阻止事件

<2>利用vue的方法阻止冒泡：給HTML元素綁定click事件的時(shí)候，改為@click.stop="show()"

vue阻止事件

<!DOCTYPE html><html><head>
    <title></title>
    <meta charset="utf-8">
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(event){
                        alert(1);                        //event.cancelBubble = true;                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }    </script></head><body>
    <div id="box">
        <div @click="show1()">
            <input type="button" value="按鈕" @click.stop="show()"> 
        </div>
    </div></body></html>

vue阻止事件

3.默認(rèn)行為

比如contextmenu右鍵菜單

vue阻止事件

<!DOCTYPE html><html><head>
    <title></title>
    <meta charset="utf-8">
    <!-- // <script src="vue.js"></script> -->
    <script src="http://unpkg.com/vue/dist/vue.js"></script>

    <script type="text/javascript">
        window.onload = function(){            var vm = new Vue({
                el:'#box',
                methods:{
                    show:function(){
                        alert(1);
                    },
                    show1:function(){
                        alert(2);
                    }
                }
            });
        }    </script></head><body>
    <div id="box">
        <input type="button" value="按鈕" @contextmenu="show()"> 
        <input type="button" value="按鈕1" @contextmenu.prevent="show1()"> 

        <p>//按鈕右擊點(diǎn)下去會(huì)依次出現(xiàn) 彈窗 1， 還有右擊的默認(rèn)菜單</p>
        <p>//按鈕1右擊只出現(xiàn) 彈窗 2</p>
    </div></body></html>

vue阻止事件

@click.stop.prevent，相當(dāng)于同時(shí)執(zhí)行：
event.stopPropagation();
event.preventDefault();

文章標(biāo)題：vue阻止事件
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vue阻止事件