[vue]render函數渲染組件


[vue]全局組件和局部組件(嵌套+props引用父組件數據)
[vue]組件篇

[vue]組件的創建(componet)和銷毀(keep-alive緩存)和父子dom同步nextTick

[vue]實現父子組件數據雙向綁定
[vue]render函數渲染組件
[vue]webpack&vue組件工程化實踐

常規渲染組件

1.放到對應的插槽
2,不會覆蓋

<div id="app">
    {{msg}}
    <login></login>
</div>
<script src="node_modules/vue/dist/vue.js"></script>
<script>
  let login = {
    template: "<div>login zujian</div>"
  };
  let vm = new Vue({
    el: "#app",
    data: {
      msg: "maotai"
    },
    components: {
      login,
    }
  })
</script>

render渲染組件

1.覆蓋#app下的

<body>
<div id="app">
    hellow 
</div>
<script src="node_modules/vue/dist/vue.js"></script>
<script>
  let login = {
    template: "<div>login zujian</div>"
  };
  let vm = new Vue({
    el: "#app",
    data: {
      msg: "maotai"
    },
    render: function (createElements) { //會將#app里的內容覆蓋掉
      return createElements(login); //createElements是一個方法,調用它能夠把指定的組件模板,渲染為對應的html
    }
  })
</script>

render渲染含有自組件(對理解webpack很有幫助)

render把account當成了根

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    {{msg}}
</div>

<template id="account">
    <div>
        <p>account</p>
        <router-link to="/login">/login</router-link>
        <router-view></router-view>
    </div>
</template>

<template id="login">
    <div>login</div>
</template>

<script src="node_modules/vue/dist/vue.js"></script>
<script src="node_modules/vue-router/dist/vue-router.js"></script>
<script>
    let account = {
        template: "#account"
    };

    let login = {
        template: "#login"
    };

    let routes = [
        {path: '/login', component: login},
    ];

    let router = new VueRouter({routes});

    let vm = new Vue({
        el: "#app",
        render: function (createElement) {
            return createElement(account);
        },
        router
    })
</script>
</body>
</html>

render簡寫

let vm = new Vue({
    el: "#app",
    render: c => c(App),
});

webpack最佳實踐: https://www.cnblogs.com/iiiiiher/p/9499406.html


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