What are the several ways to create components in Vue?
Method: 1. Use "Vue.extend" to create a global vue component, the syntax is 'Vue.component ('component name', the created component template object); 2. Use "Vue.component" Create a component; 3. Use the template element to define the HTML template structure of the component.
The operating environment of this article: Windows 10 system, Vue version 2.9.6, DELL G3 computer.
What are the several ways for vue to create components
1. Use Vue.extend to create global Vue components
<div id="app"> <!-- 如果要使用组件,直接,把组件的名称,以 HTML 标签的形式,引入到页面中,即可 --> <mycom1></mycom1> </div> <script> // 1.1 使用 Vue.extend 来创建全局的Vue组件 // var com1 = Vue.extend({ // template: '<h3>这是使用 Vue.extend 创建的组件</h3>' // 通过 template 属性,指定了组件要展示的HTML结构 // }) // 1.2 使用 Vue.component('组件的名称', 创建出来的组件模板对象) // Vue.component('myCom1', com1) // 如果使用 Vue.component 定义全局组件的时候,组件名称使用了 驼峰命名,则在引用组件的时候,需要把 大写的驼峰改为小写的字母,同时,两个单词之前,使用 - 链接; // 如果不使用驼峰,则直接拿名称来使用即可; // Vue.component('mycom1', com1) // Vue.component 第一个参数:组件的名称,将来在引用组件的时候,就是一个 标签形式 来引入 它的 // 第二个参数: Vue.extend 创建的组件 ,其中 template 就是组件将来要展示的HTML内容 Vue.component('mycom1', Vue.extend({ template: '<h3>这是使用 Vue.extend 创建的组件</h3>' })) // 创建 Vue 实例,得到 ViewModel var vm = new Vue({ el: '#app', data: {}, methods: {} }); </script>
2. Use Vue.component to create directly
<div id="app"> <!-- 还是使用 标签形式,引入自己的组件 --> <mycom2></mycom2> </div> <script> // 注意:不论是哪种方式创建出来的组件,组件的 template 属性指向的模板内容,必须有且只能有唯一的一个根元素 Vue.component('mycom2', { template: '<div><h3>这是直接使用 Vue.component 创建出来的组件</h3><span>123</span></div>' }) // 创建 Vue 实例,得到 ViewModel var vm = new Vue({ el: '#app', data: {}, methods: {} }); </script>
3. Outside the controlled #app, use the template element to define the HTML template structure of the component
<div id="app"> <mycom3></mycom3> <!-- <login></login> --> </div> <div id="app2"> <mycom3></mycom3> <login></login> </div> <!-- 在被控制的 #app 外面,使用 template 元素,定义组件的HTML模板结构 --> <template id="tmpl"> <div> <h1>这是通过 template 元素,在外部定义的组件结构,这个方式,有代码的只能提示和高亮</h1> <h4>好用,不错!</h4> </div> </template> <template id="tmpl2"> <h1>这是私有的 login 组件</h1> </template> <script> Vue.component('mycom3', { template: '#tmpl' }) // 创建 Vue 实例,得到 ViewModel var vm = new Vue({ el: '#app', data: {}, methods: {} }); var vm2 = new Vue({ el: '#app2', data: {}, methods: {}, filters: {}, directives: {}, components: { // 定义实例内部私有组件的 login: { template: '#tmpl2' } }, }) </script>
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