在TypeScript中,你可以使用泛型和接口来定义组件的children属性。例如: 代码语言:txt 复制 import React from 'react'; interface MyComponentProps { // 其他属性... children?: React.ReactNode; // 使用React.ReactNode来表示children可以是任何React节点 } const MyComponent: React.FC...
您可以使用React.PropsWithChildren，它将接受您想要传递给children以外的组件的属性的类型参数。组件的返回...
type MyComponentProps = { className: string }; // Does not work. function MyComponent({ className, children }: MyComponentProps) { // children is not typed and TypeScript complains return <div className={className}>{children}</div>; } 但是使用React.FC将一切正常: // Works as expected: ...
第二种:使用PropsWithChildren,这种方式可以为你省去频繁定义 children 的类型,自动设置 children 类型为 ReactNode: type AppProps = React.PropsWithChildren<{ message: string }> const App = ({ message, children }: AppProps) => ( <div> {message} {children} </div> ) 复制代码 第三种:直接声明...
import * as React from 'react'; import { render } from 'react-dom'; interface IProps<T> { collapsed: boolean; listOfData: T[]; displayData: (data: T, index: number) => React.ReactNode; } class CollapsableDataList<T> extends React.Component<IProps<T>> { render () { if (!this...
When I started using TypeScript with React, the first bump in the road was figuring out what type to use for thechildrenprop. That’s because there are several different types React provides for this. It didn’t help that I saw multiple projects using different types interchangeably. ...
type Props = { children: React.ReactNode;};function Comp({ children }: Props) { return <div>{children}</div>;}function App() { return <Comp>{{}}</Comp>; // Runtime Error: Objects not valid as React Child!} 这是因为 ReactNode 包含 ReactFragment （它允许 {} ），修复这个会...
React.Children.only TheReact.Children.onlymethod is used to ensure that a component has only one child. The TypeScript signature of this method is: function only<T>(children: ReactNode): T It takes a single child node as an argument and returns it. If the node has more than one child...
children: React.ReactNode; }; type ButtonState = { isOn: boolean; }; class Button extends React.Component<ButtonProps, ButtonState>{ static defaultProps = { label: "Hello World!" }; state = { isOn: false }; toggle = () => this.setState({ isOn: !this.state.isOn }); ...
javascript reactjs typescript recursion 1个回答 1投票 您只需要向 WrapperProps<C> 添加通用约束 - 与 ComponentPropsWithoutRef<C> 具有的相同 - 即 ElementType。 interface WrapperProps<C extends React.ElementType> { children: ReactNode; firstChildProps: Partial<React.ComponentPropsWithoutRef<C>...