作为javascript开发,vue中created与mounted区别 ?
在Vue.js中,`created`和`mounted`都是生命周期钩子函数,它们在组件被创建和渲染时分别被调用。 `created`钩子在组件被创建时被调用。在这个阶段,所有的属性已经被设置,所有的子组件也已经被创建,但是DOM元素尚未被渲染。 ```javascript export default { name: 'HelloWorld', created() { console.log('created') }, data() { return { msg: 'Welcome to Your Vue.js App' } }, template: '<div>hello {{ msg }}</div>' } ``` `mounted`钩子在组件被创建并挂载到DOM上之后被调用。在这个阶段,所有的数据都已经渲染到DOM中。 ```javascript export default { name: 'HelloWorld', mounted() { console.log('mounted') }, data() { return { msg: 'Welcome to Your Vue.js App' } }, template: '<div>hello {{ msg }}</div>' } ``` 如果你需要在组件被挂载到DOM上之后进行一些操作,例如发起网络请求,获取数据等,你应该使用`mounted`钩子。而如果你只是需要在组件被创建时做一些初始化操作,例如设置一些默认值,你应该使用`created`钩子。 [2023-11-09 01:34:20 | AI写代码神器 | 283点数解答]
- [讯飞星火] cannot read properties of null (reading 'userid') typeerror: cannot read properties of null (reading 'userid') at eval (webpack-internal:///./node_modules/babel-loader/lib/index.js??clonedruleset-40.use[0]!./node_modules/vue-loader/dist/index.js??ruleset[0].use[0]!./src/views/businesslistview.vue?vue&type=script&setup=true&lang=js:28:88) at eval (webpack-internal:///./node_modules/@vue/runtime-core/dist/runtime-core.esm-bundler.js:2677:40) at callwitherrorhandling (webpack-internal:/(614点数解答 | 2024-11-28 14:31:57)247
- [讯飞星火] message: session not created: chrome failed to start: exited normally. (session not created: devtoolsactiveport file doesn't exist) (the process started from chrome location /usr/bin/google-chrome is no longer running, so chromedriver is assuming that怎么处理(222点数解答 | 2024-07-02 17:22:16)277
- [讯飞星火] cannot read properties of null (reading 'userid') typeerror: cannot read properties of null (reading 'userid') at eval (webpack-internal:///./node_modules/babel-loader/lib/index.js??clonedruleset-40.use[0]!./node_modules/vue-loader/dist/index.js??ruleset[0].use[0]!./src/views/businesslistview.vue?vue&type=script&setup=true&lang=js:28:88)(523点数解答 | 2024-11-28 14:32:05)233
- [讯飞星火] cannot read properties of null (reading 'userid') typeerror: cannot read properties of null (reading 'userid') at eval (webpack-internal:///./node_modules/babel-loader/lib/index.js??clonedruleset-40.use[0]!./node_modules/vue-loader/dist/index.js??ruleset[0].use[0]!./src/views/businesslistview.vue?vue&type=script&setup=true&lang=js:28:88) 要怎么修改代码(516点数解答 | 2024-11-28 14:32:43)261
- [阿里通义] 作为c++开发,new int[10]跟new int[10]()区别(196点数解答 | 2023-11-09 00:45:31)304
- linux df -h mounted 位置不准确(421点数解答 | 2024-05-11 11:24:36)167
- [阿里通义] linux df -h mounted 文件路径位置不准确(277点数解答 | 2024-05-11 11:25:14)154
- [阿里通义] 作为javascript开发,vue 3.0 所采用的 composition api 与 vue 2.x使用的options api 有什么区别?(342点数解答 | 2023-11-09 01:34:53)310
- [阿里通义] 作为javascript开发,vue.extend 和 vue.component 的区别是什么?(339点数解答 | 2023-11-09 01:36:22)290
- [GPT] <script setup> import { ref, onmounted } from 'vue' import { useroute } from 'vue-router' import { selectbyid } from '@/api/job' import { selectqiye } from '@/api/qiye' import { selectjianli } from '@/api/jianli' import { applyforjob, checkshenqing } from '@/api/shenqing' import { elmessage } from 'element-plus' import { addshoucang, cancelshoucang, checkshoucang } from '@/api/shoucang' const token = localstorage.getitem('token') const route = useroute() const userrole = localstorage.getitem('us(136点数解答 | 2024-12-29 17:09:05)217
- [阿里通义] 作为javascript开发,简述 jquery中 $ .get()提交和$.post()区别 ?(341点数解答 | 2023-11-09 01:15:01)286
- [百度文心] 作为php开发,php isset() 和 empty() 区别?(340点数解答 | 2023-11-09 17:57:11)297