<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.v-link-active {
color: red;
}
</style>
</head>
<body>
<h3>#使用props传递数据</h3>
<div id="dr01">
<div>组件实例的作用域是孤立的。这意味着不能并且不应该在子组件的模板内直接引用父组件的数据。可以使用 props 把数据传给子组件。</div>
<br />
<child msg="hello, vue.js!"></child>
</div>
<hr />
<h3>#camelCase vs. kebab-case</h3>
<div id="dr02">
<div>HTML 特性不区分大小写。名字形式为 camelCase 的 prop 用作特性时，需要转为 kebab-case（短横线隔开）</div>
<br />
<!-- kebab-case in html -->
<child02 my-message02="Hello, this is kebab-case message!"></child02>
</div>
<hr />
<h3>#动态Props</h3>
<div id="dr03">
<div>
<input v-model="parentMsg" placeholder="please input parentMsg" />
</div>
<br />
<!-- 用v-bind绑定数据parentMsg到组件中 -->
<child03 v-bind:my-message03="parentMsg"></child03>
<!-- 缩写v-bind-->
<child03 :my-message03="parentMsg"></child03>
</div>
<hr />
<h3>#字面量语法 VS 动态语法</h3>
<div id="dr04">
<!-- 这里传递是字符串 -->
<child04 my-message04="123+456"></child04>
<!-- 这里用了动态语法，传递的值会通过js的表达式计算，传递的是数字 -->
<child04 :my-message04="123+456"></child04>
</div>
<hr />
<h3>#Prop类型绑定（单向、双向）</h3>
<div id="dr05">
<div>
<div>vue实例：</div>
<input v-model="name" />
</div>
<br />
<div>
<div>component组件（默认）：</div>
<child05 :my-message05="name"></child05>
<div>component组件（once）：</div>
<child05 :my-message05.once="name"></child05>
<div>component组件（sync）：</div>
<child05 :my-message05.sync="name"></child05>
</div>
</div>
<h3>#Prop验证</h3>
<div id="dr06">
<div>
<span>vue实例</span>
<div>
name:{{dr.name}}, age:{{dr.age}}.
</div>
<div>
<input v-model="telphone" />
</div>
</div>
<br />
<div>
<span>vue自定义组件</span>
<child06 :msg_null="123+456" msg_string="this is string" :msg_number="99" :msg_twoway.sync="telphone" :msg_validate="mobilephone" :msg_number2String="mobilephone" :msg_obj2json="dr" :msg_json2obj="drJson"></child06>
</div>
</div>
<script src="vue.js"></script>
<script src="vue-resource.min.js"></script>
<script src="vue-router.js"></script>
<script src="demo_2.js"></script>
</body>
</html>
js：
//********************************************************************
//使用props传递数据
//注册组件"child"
Vue.component("child", {
//声明props属性
props: ['msg'],
//props可以用在模板内
//可以用"this.msg"设置
template: '<div>msg: {{msg}}</div>'
});
var dr01 = new Vue({
el: "#dr01",
});
//********************************************************************
//camelCase vs. kebab-case
//注册组件child02
Vue.component("child02", {
//在js中用驼峰命名法
props: ["myMessage02"],
template: "<div>myMessage02: {{myMessage02}}</div>"
});
var dr02 = new Vue({
el: "#dr02",
});
//********************************************************************
//动态Props
//注册组件myMessage03
Vue.component("child03", {
props: ['myMessage03'],
template: "<div>myMessage03: {{myMessage03}}</div>"
});
var dr03 = new Vue({
el: "#dr03",
data: {
parentMsg: "Hello, this is parentMsg!",
}
});
//********************************************************************
//字面量语法 VS 动态语法
Vue.component("child04", {
props: ["myMessage04"],
template: "<div>myMessage04: {{myMessage04}}</div>",
});
var dr04 = new Vue({
el: "#dr04",
});
//********************************************************************
//Prop类型绑定
Vue.component("child05", {
props: ["myMessage05"],
template: '<input type="text" v-model="myMessage05" />'
});
var dr05 = new Vue({
el: "#dr05",
data: {
name: "DarkRanger",
}
});
//********************************************************************
//Prop验证
Vue.component("child06", {
props: {
//基础类型检测("null"意思是任何类型都可以)
msg_null: null,
//String类型，必须是定义过的，可以是空字符串""
msg_string: {
type: String,
required: true,
},
//Number类型，默认值100
msg_number: {
type: Number,
default: 100,
},
//Object类型，返回值必须是js对象
msg_obj: {
type: Object,
default: function() {
return {
name: "DarkRanger",
age: "18",
}
}
},
//指定这个prop为双向绑定
//如果绑定类型不对将抛出一条警告
msg_twoway: {
type: String,
twoWay: true,
},
//自定义验证，必须是Number类型，验证规则：大于0
msg_validate: {
type: Number,
validator: function(val) {
return val > 0;
}
},
//将值转为String类型
//在设置值之前转换值(1.0.12+)
msg_number2string: {
coerce: function(val) {
return val + ""
}
},
//js对象转JSON字符串
msg_obj2json: {
coerce: function(obj) {
return JSON.stringify(obj);
}
},
//JSON转js对象
msg_json2obj: {
coerce: function(val) {
return JSON.parse(val);
}
},
},
template: '<div>msg_null: {{msg_null}}</div><div>msg_string:{{msg_string}}</div><div>msg_number: {{msg_number}}</div><div>msg_obj:{{"name-->"+msg_obj.name+", age-->"+msg_obj.age}}</div><div>msg_twoway:<input v-model="msg_twoway"></div><div>msg_validate:{{msg_validate}}</div><div>msg_number2String: {{msg_number2string}}</div><div>msg_obj2json: {{msg_obj2json}}</div><div>msg_json2obj:{{"name: "+msg_json2obj.name+"; age: "+msg_json2obj.age}}</div>'
});
var dr06 = new Vue({
el: "#dr06",
data: {
telphone: "0356-1234567",
mobilephone: 15912345678,
dr: {
name: "DarkRanger",
age: 25
},
drJson: '{"name":"DarkRanger","age":25}',
}
})