6 Vue 报错: Property or method “handleOpen“ is not defined on the instance but referenced ... Property or method “xxx” is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by ...
第三步:在组件中引入所需的api // home.jsimport{ ref, computed, reactive, toRefs, onMounted, nextTick, watch, effectWatch, getCurrentInstance }from'@vue/composition-api'exportdefault{name:'Home',props: {name: {type:String,default:''} },setup(props, { emit, attrs, refs, root }) {/** ...
a)vue组件:is属性，可动态加载组件 b) import()函数：webpack支持import函数中设置变量，从而可动态生成...
_isVue || (ob && ob.vmCount)) { // 如果是vue根实例,就警告 process.env.NODE_ENV !== 'production' && warn( 'Avoid adding reactive properties to a Vue instance or its root $data ' + 'at runtime - declare it upfront in the data option.' ) return val } if (!ob) { // ...
value.value : value},set: function reactiveSetter(newVal) {const value = getter ? getter.call(obj) : valif (!hasChanged(value, newVal)) {return}if (__DEV__ && customSetter) {customSetter()}if (setter) {setter.call(obj, newVal)} else if (getter) {// #7981: for accessor propert...
// they need to be reactive so that HOCs using them are always updated const parentData = parentVnode && parentVnode.data /* istanbul ignore else */ if (process.env.NODE_ENV !== 'production') { defineReactive(vm, '$attrs', parentData && parentData.attrs || emptyObject, () => { ...
Global state is defined as reactive (b8e35f7) but Vue 2 Composition API requires to be initialised before creating refs or reactives. This can cause problems if vue motion is loaded in the same chunk Sorry, something went wrong. Copy link ...
文章目录安装环境创建项目1、配置路由2、安装VueX3、安装国际化4.vite.config.ts常用配置5.找不到模块声明declare6.path模块找不到打包问题Vite打包后显示跨域Vue3.0的新语法糖-script setupCss中使用JS代码Css中使用变量Css去掉scopeRef、toRef、toRefs、Reactive总结defineProps父子传值defineEmit ...
// code/22.Vue2剥丝抽茧-虚拟dom之组件/src/core/vdom/create-element.jsexportfunction_createElement(context,tag,data,children){if(!tag){// in case of component :is set to falsy valuereturncreateEmptyVNode();}if(Array.isArray(data)||isPrimitive(data)){children=data;data=undefined;}children=...
从vue引入reactive 使用reactive()方法来声名我们的数据为反应性数据 使用setup()方法来返回我们的反应性数据,从而我们的template可以获取这些反应性数据 import { reactive } from 'vue' export default { props: { title: String }, setup () { const state = reactive({ username: '', password: '' })...