import React from 'react'; import PropTypes from 'prop-types'; class MyComponent extends React.Component { render() { return ( {this.props.numberProp} ); } } MyComponent.propTypes = { numberProp: PropTypes.number.isRequired, }; MyComponent.defaultProps = { numberProp: ...
使用React,可以使用propType来指定DOM元素类型。 React是一个用于构建用户界面的JavaScript库,它采用组件化的开发模式。在React中,可以通过props属性向组件传递数据。propType是React提供的一种类型检查机制,用于验证传递给组件的props的类型是否符合预期。 虽然propType主要用于验证传递给组件的props的类型,但它...
// A React element. optionalElement:PropTypes.element, // You can also declare that a prop is an instance of a class. This uses // JS's instanceof operator. optionalMessage:PropTypes.instanceOf(Message), // You can ensure that your prop is limited to specific values by treating // it ...
B): ReactPropTypes.js 1varReactPropTypes ={2array: createPrimitiveTypeChecker('array'),3bool: createPrimitiveTypeChecker('boolean'),4func: createPrimitiveTypeChecker('function'),5number: createPrimitiveTypeChecker('number'),6object: createPrimitiveTypeChecker('object'),7string: createPrimitiveTypeChecker(...
可以只用typescript进行验证,也可以只用prop-types进行验证,也可以两者混搭进行验证,这个并没用严格限制。首先不管用typescript,还是prop-types,都只在开发模式下进行检查,typescript无需多言,react我们参考官网:只是用typescript验证提示是ts语言带来的功能,用prop-types验证提示是react带来的功能。至于写法我们可以参考官网...
(or fragment) containing these types.optionalNode:PropTypes.node,// A React element.optionalElement:PropTypes.element,// You can also declare that a prop is an instance of a class. This uses// JS's instanceof operator.optionalMessage:PropTypes.instanceOf(Message),// You can ensure that your...
oneOfType([ PropTypes.string, PropTypes.number, PropTypes.instanceOf(Error), ]), } TypeScript: interface Props { error: Error children: React.ReactNode status: 'inactive' | 'inProgress' | 'success' | 'failed' value: string | number | Error } Array & object types Prop types: Example...
import type { RenderProp } from 'react-render-prop-type'; type ColumnProps = { rowId: string; }; const Column = ({ rowId, attr, children /* 👈 default name */, }: ColumnProps & RenderProp<{ data: string; } /* 👈 props to be passed to the render function */>) => { ...
//reactjs.org/docs/rendering-elements.html for more infooptionalNode:PropTypes.node,// A React element (ie. <MyComponent />).optionalElement:PropTypes.element,// A React element type (eg. MyComponent).// a function, string, or "element-like" object (eg. React.Fragment, Suspense, etc.)...
react.js Warning: Failed form propType: You provided a value prop to a form field without an onChange handler. This will render a read-only field.,错误信息:eact.js:20483Warning:FailedformpropType:Youprovideda value proptoaformfieldwithoutan onChangehan