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手动实现vue组件间input双向数据绑定
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>vue</title>
<script src="https://cdn.bootcss.com/vue/2.6.3/vue.js"></script>
</head>
<body>
<div id="app">
</div>
<script>
var temOne = {
props:['value'],
template: `
<div>
<input type="text" @input="handleInput" :value="value">
</div>
`,
methods: {
handleInput (e) {
this.$emit('input', e.target.value)
}
}
}
var vm = new Vue({
el: '#app',
data: {
value: '123'
},
components: {
temOne
},
template: `
<div>
{{value}}
<tem-one :value="value" @input="value = arguments[0]"></tem-one>
<tem-one v-model="value"></tem-one> <!-- v-model语法糖、有点费解。 -->
</div>
`
})
</script>
</body>
</html>编辑:--ns868
