vue父子组件双向绑定
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>改变字体px大小</title> 6 <script type="application/javascript" src="../js/vue.js"></script> 7 </head> 8 <body> 9 <div id="app"> 10 <button-change-text-font v-model="fontSize"></button-change-text-font> 11 <div style="border-bottom: 1px dotted cadetblue"></div> 12 font size from input = {{ fontSize }} 13 </div> 14 </body> 15 <script type="application/javascript"> 16 // 定义vue组件 17 Vue.component('button-change-text-font', { 18 props: ['textSize'], 19 template: '<div><button>curent text size {{ textSize }}px</button>' + 20 ' <input type="text" v-model="textSize" v-on:input="$emit(\'input\', $event.target.value)">' + 21 ' </br>' + 22 ' <span :style="{fontSize: textSize + \'px\'}">show some text here!</span></div>', 23 model: { 24 prop: 'textSize', 25 event: 'input' 26 } 27 }); 28 29 var vm = new Vue({ 30 el: '#app', 31 data: { 32 fontSize: 16, 33 } 34 }) 35 </script> 36 </html>
参考来源 自定义组件的 v-model
一节
本文来自博客园,作者:一朵野生菌,转载请注明原文链接:https://www.cnblogs.com/xmy20051643/p/14034266.html