import Vue from 'vue'import Component from 'vue-class-component' @Componentexport default class HelloWorld extends Vue {// Declare mounted lifecycle hookmounted() {console.log('mounted')} // Declare render func
// Declare mounted lifecycle hook mounted() { console.log('mounted') } // Declare render function render() { returnHello World! } } 如果你使用一些Vue插件(如Vue Router),你可能希望类组件解析它们提供的钩子。在这种情况下,可以只用Component.registerHooks来注册这些额外的钩子: // class-component-ho...
importVuefrom'vue'importComponentfrom'vue-class-component'@ComponentexportdefaultclassHelloWorldextendsVue{// Declare mounted lifecycle hookmounted(){console.log('mounted')}// Declare render functionrender(){returnHello World!}} Other Options 对于其他所有选项,则需要将其写到注解 @Component中。 <template>...
importVuefrom'vue'importComponentfrom'vue-class-component'@ComponentexportdefaultclassHelloWorldextendsVue{// Declare mounted lifecycle hookmounted(){console.log('mounted')}// Declare render functionrender(){returnHello World!}} Other Options 对于其他所有选项,则需要将其写到注解 @Component中。 代码语言:...
3.lifecycle hooks生命周期:function component 不具有生命周期,因为所有的生命周期钩子函数均来自于React.Component。所以当一个组件需要生命周期钩子的时候我们也需要class component。 为什么要用function component? function component和class component 比起来缺少那么多功能为什么还要用function componet。
import Component from 'vue-class-component' @Component export default class HelloWorld extends Vue { // `message` will not be reactive value message = undefined } 1. 2. 3. 4. 5. 6. 7. 8. 为了避免这种情况,可以使用 null 对值进行初始化,或者使用 data()构造钩子函数,如下:...
This method enables class components to update and handle data that changes over time, allowing the component to re-render when the state is modified.Additionally, class components make use of lifecycle methods, which are predefined functions that execute at different stages of a component’s ...
// App.vueimportVue from'vue'importComponent from'vue-class-component'@Component({ props: { propMessage: String } })export defaultclassAppextendsVue{// initial datamsg=123// use prop values for initial datahelloMsg='Hello, '+this.propMessage// lifecycle hookmounted () {this.greet() }...
react hooks和class component，只是写法上、范式上的差别，极限性能上的差距，可忽略不计，本质还是一个...
The new APIs proposed inAdvanced Reactivity API #22andDynamic Lifecycle Injection #23enables a new pattern (temporarily) named "composition functions) that can serve as a better component API than classes. Shipping both composition functions and Class API essentially results in 3 ways of doing the...