optionalNumber:PropTypes.number, optionalObject:PropTypes.object, optionalString:PropTypes.string, optionalSymbol:PropTypes.symbol,//Anything that can be rendered: numbers, strings, elements or an array//(or fr
PropTypes.string, PropTypes.number, PropTypes.instanceOf(Message) ]), // 指定类型组成的数组 optionalArrayOf: PropTypes.arrayOf(PropTypes.number), // 指定类型的属性构成的对象 optionalObjectOf: PropTypes.objectOf(PropTypes.number), // 一个指定形式的对象 optionalObjectWithShape: PropTypes.shape({ colo...
PropTypes.number PropTypes.object PropTypes.string PropTypes.node PropTypes.element ... 更多类型及其用法可以参看官方文档:Typechecking With PropTypes - React。 组件参数验证在构建大型的组件库的时候相当有用,可以帮助我们迅速定位这种类型错误,让我们组件开发更加规范。另外也起到了一个说明文档的作用,如果大家都约...
optionalBool:PropTypes.bool,optionalFunc:PropTypes.func,optionalNumber:PropTypes.number,optionalObject:PropTypes.object,optionalString:PropTypes.string,optionalSymbol:PropTypes.symbol,// 任何可以被渲染的事物:numbers, strings, elements or an array// (or fragment) containing these...
下面是我得到的当前错误:这是我当前的PropTypes代码,我需要检查传入的数组中的对象是否具有以下属性(id和name)。React.PropTypes.arrayOf( id: React.PropTypes.string.isRequired,name: React.PropTypes.string.isRequired 浏览56提问于2017-06-29得票数 1 回答已采纳 ...
a. PropTypes.node:Any prop value such as an array, an element, a string or a number that React can render. b. PropTypes.element:An element should be used as a Prop. Code: Component.propTypes = { Propnodesyntax: PropTypes.node,
按照建议,我在prop参数中设置了默认值。我还添加了JSDoc中的类型,这似乎很有帮助
On the other hand, if you can’t express some shape with an interface and you need to use a union or tuple type, type aliases are usually the way to go. 比如: // 定义各一个基本数据类型的别名 type Primitive = number | string | boolean | null | undefined ...
使用propTypes对属性进行强校验,验证格式是否正确(number,string,func等),isRequired是必须要传的意思,不能不传值。 TodoItem.propTypes={test:PropTypes.string.isRequired,// 类型是数字或者是字符串content:PropTypes.oneOfType([PropTypes.number,PropTypes,string]),deleteItem:PropTypes.func,index:PropTypes.number}...
id: PropTypes.number, content: PropTypes.string, user: PropTypes.string } Here,PropTypes.stringandPropTypes.numberare prop validators that can be used to make sure that the props received are of the right type. In the code above, we’re declaringidto be a number, whilecontentanduserare to ...