import { computed, ref } from 'vue'const count = ref(0)const doubled = computed(() => count.value * 2) 使用unplugin-auto-import插件后: const count = ref(0)const doubled = computed(() => count.value * 2) 使用方法 基本使用 unplugin-auto-import是基于unplugin写的,支持 Vite、Webpa...
export{}declareglobal{consth:typeofimport('vue')['h']constreactive:typeofimport('vue')['reactive']constref:typeofimport('vue')['ref']constwatch:typeofimport('vue')['watch']constwatchEffect:typeofimport('vue')['watchEffect']// 省略其他内容} unplugin-auto-import插件会根据预设内容,生成对应...
import{computed,ref}from'vue'constcount=ref(0)constdoubled=computed(()=>count.value*2) with constcount=ref(0)constdoubled=computed(()=>count.value*2) without import{useState}from'react'exportfunctionCounter(){const[count,setCount]=useState(0)return{count}} with exportfunctionCounter(){const[...
<template>content is {{ content }}</template>import{ ref }from"vue";constcount =ref(10);if(count.value) {defineProps({content:String, }); } 代码跑起来直接就报错了,提示defineProps is not defined 通过debug搞清楚上面几个问题 在我的上一篇文章vue文件是如何编译为js文件中已经带你搞清楚了vue...
在Vue 3 里面,我们对整个响应式系统做了一个重新的设计,同时暴露出了这几个新的API,ref reactive computed effect。我们把原本 Vue 2 Object.defineProperty 的实现改成了使用 Proxy 的实现方式。而 Proxy 可以给我们提供对属性更新监控的更大的灵活性。
import{computed,ref}from'vue'constcount=ref(0)constdoubled=computed(()=>count.value*2) with constcount=ref(0)constdoubled=computed(()=>count.value*2) without import{useState}from'react'exportfunctionCounter(){const[count,setCount]=useState(0)return{count}} with exportfunction...
import { computed, ref } from 'vue' const count = ref(0) const doubled = computed(() => count.value * 2)withconst count = ref(0) const doubled = computed(() => count.value * 2)withoutimport { useState } from 'react' export function Counter() { const [count, setCount] = ...
import ViteRestart from 'vite-plugin-restart' export default { plugins: [ ViteRestart({ restart: [ 'vite.config.js', ] }) ], }; unplugin-vue-components 组件自动按需导入 安装: npm i unplugin-vue-components -D 配置:vite.config.js ...
解决开发中经常使用的ref, computed等需要频繁引入的问题 1. 插件 unplugin-auto-import:auto import api for vite,webpack,rollup and esbuild。官网 // import { computed, ref } from 'vue' 不再需要constcount=ref(0)constdoubled=computed(()=>count.value*2) ...
import{$ref}from'vue/macros' letcount=$ref(0) 通过$()解构 我们通常会在组合函数内返回多个ref,然后解构得到这些ref,对于这种场景,响应性语法糖提供了一个$()宏: import{useMouse}from'@vueuse/core' const{x,y}=$(useMouse()) console.log(x,y) ...