


Vue's props enable child components to change together with the parent component
Dec 08, 2016 pm 04:05 PMThe 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('child',{ props: ['myMessage'], //VUE實(shí)例中myMessage 等價(jià)于my-message template: '<span>{{ myMessage }}</span><br>' }); var vm = new Vue({ el: '#app1', data:{ messsage:'hello you are a good boy!' } }); </script> </body> </html>

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