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    Home php教程 PHP開發(fā) Vue's props enable child components to change together with the parent component

    Vue's props enable child components to change together with the parent component

    Dec 08, 2016 pm 04:05 PM
    vue

    The example in this article shares with you Vue's props to implement changes in parent components and sub-components for your reference. The specific content is as follows

    Similar to using v-bind to bind HTML features to an expression, you can also use v-bind to bind Define dynamic Props to the parent component's data. Whenever the data of the parent component changes, it will also be transmitted to the child component:

    <div>
     <input v-model="parentMsg">
     <br>
     <child v-bind:my-message="parentMsg"></child>
    </div>

    It is usually simpler to use the abbreviated syntax of v-bind:

    Instance:

    <!DOCTYPE html>
    <html lang="en">
     
    <head>
     <script type="text/javascript" src="vue.js"></script>
     <meta charset="UTF-8">
     <title>vue的props實(shí)現(xiàn)父組件變化子組件一起變化</title>
    </head>
     
    <body>
    <div id="app1">
     <input v-model="messsage" > <!--input綁定實(shí)例中data中的message-->
     <div >
      <child v-bind:my-message="messsage"></child> <!--子組件綁定實(shí)例中data中的message-->
     </div>
     
    </div>
     
     <script>
      Vue.config.debug = true;
      Vue.component(&#39;child&#39;,{
       props: [&#39;myMessage&#39;], //VUE實(shí)例中myMessage 等價(jià)于my-message
       template: &#39;<span>{{ myMessage }}</span><br>&#39;
      });
      var vm = new Vue({
       el: &#39;#app1&#39;,
       data:{
        messsage:&#39;hello you are a good boy!&#39;
       }
      });
     </script>
    </body>
     
    </html>


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