}else{// 函数式组件处理if(!instance.type.props) {// functional w/ optional props, props === attrsinstance.props= attrs }else{// functional w/ declared propsinstance.props= props } }// 普通属性赋值instance.attrs= attrs } 设置props // 只分析有状态组件的props,也就是isStateful是truefunction...
{Object | Function} plugin ...options(optional) 返回值:应用实例 用法: 安装一个vue.js的插件。如果插件是一个对象,它必须公开一个安装方法。如果它本身是一个函数,它将被视为安装方法。 安装方法将以应用程序作为其第一个参数调用。传递给使用的任何选项都将在后续参数中传递。 当对同一个插件多次调用此方...
Similar tothis.$propswhen using Options API, thepropsobject will only contain explicitly declared props. Also, all declared prop keys will be present on thepropsobject, regardless of whether it was passed by the parent component or not. Absent optional props will have a value ofundefined. If ...
{ "dependencies": { "vue-demi": "latest" }, "peerDependencies": { "@vue/composition-api": "^1.0.0-rc.1", "vue": "^2.0.0 || >=3.0.0" }, "peerDependenciesMeta": { "@vue/composition-api": { "optional": true } }, "devDependencies": { "vue": "^3.0.0" }, } 代码改造...
: boolea } // Number of columns colNum: number // // Optional props // autoSize: boolean = true isDraggable: boolean = true isDraggable: boolean = true margin: [number, number] = [10, 10] maxRows: number = Infinity preventCollision: boolean = true rowHeight: number = 150 useCss...
PublicProps = P, Defaults = {}, MakeDefaultsOptional extends boolean = false, Options = ComponentOptionsBase<any, any, any, any, any, any, any, any, any> > = { $: ComponentInternalInstance $data: D $props: MakeDefaultsOptional extends true ...
在Vue.js 3中,全局状态管理可以通过provide和inject、reactive和readonly等功能来实现。下面是一种基本的全局状态管理的实现方式: 创建全局状态和提供者:首先,在根组件中创建全局状态对象,并使用provide将其提供给子组件。 import { reactive, readonly, provide } from 'vue'; ...
: string[] | Record<string, null | ((emitData: any) => boolean)> setup?: SetupFunction<Props, RawBindings> } & ThisType<ComponentRenderProxy<Props, RawBindings, D, C, M>> 在上面的测试用例中就是 [test case 1] 的情况。 签名2:数组形式的 props props 将被推断为 { [key in Prop...
typeComponentPublicInstance<P = {},// props type extracted from props optionB = {},// raw bindings returned from setup()D = {},// return from data()CextendsComputedOptions = {},MextendsMethodOptions = {},EextendsEmitsOptions = {},PublicProps = P,...
vue3学习笔记 关于setup 第一个入参 props 解构props后会丢失响应性,这里可以用props.title来使用,也可以用toRefs或者toRef来避免这一缺点。 需要解构props对象,或者需要将某个 prop 传到一个外部函数中并保持响应性 import{ toRefs, toRef }from"vue";exportdefault{setup(props) {// 将 `props` 转为一个...