Vue 学习笔记-2022/12/07
一、如何创建组件
const app = Vue.createApp({});
app.component("WordCount", {
data() {
return {
content: "",
};
},
computed: {
count() {
return this.content.length;
},
},
template: `
<div>
<input v-model="content" />
<p>你共输入了 {{ count }} 个字符</p>
</div>
`,
});
const vm = app.mount("#app");<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<script src="lib/vue.global.js"></script>
<link rel="stylesheet" href="style.css" />
<title>如何创建组件</title>
</head>
<body>
<div id="app">
<div>
<word-count></word-count>
<word-count></word-count>
<word-count></word-count>
</div>
</div>
<script src="index.js"></script>
</body>
</html>二、如何创建全局组件
const app = Vue.createApp({});
app.component("WordCount", {
data() {
return {
content: "",
};
},
computed: {
count() {
return this.content.length;
},
},
template: `
<div>
<input v-model="content" />
<p>你共输入了 {{ count }} 个字符</p>
</div>
`,
});
app.component("WordCountApp", {
template: `<div>
<h1>字符统计应用</h1>
<WordCount />
</div>`,
});
const vm = app.mount("#app");三、局部组件注册
需要在对应的组件里面导出 JS 对象
然后再 index.js 导入对应的组件
// ComponentA.js
// 导出
export default {
template: `<p>我是组件 A</p>`,
};// 导入
import ComponentA from "./components/ComponentA.js";
const app = Vue.createApp({
components: {
ComponentA, // 等价于 ComponentA: ComponentA
ComponentC,
},
});
const vm = app.mount("#app");