Vue入门 Demo15 组件参数校验
<!DOCTYPE html>
<html lang="en">
<head>
<meta content="text/html; charset=utf-8" />
<title>组件参数校验</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="app">
<child content="hello world"></child>
</div>
<script>
Vue.component('child',{
template: '<div>{{content}}</div>',
props: {
//指子组件获取父组件传递过的数据属性必须是String类型
// content: String,
//也可以是对象校验
content: {
type: String,
required: true,
default: "default value",
}
}
})
var vm = new Vue({
el: "#app",
})
</script>
</body>
</html>
