子组件

Question

我使用带有React的typescript 2.3.4。我收到错误TS2339：错误TS2339：属性＆＃39;名称＆＃39;类型＆＃39; Readonly＆lt; {children？：ReactNode; }＆GT; ＆安培;只读＆LT; {}＆GT;＆＃39 ;.当我尝试在子组件中声明属性时发生错误。如何在子组件中正确引用属性？

由于某种原因，代码没有在脚本运行器中执行。

感谢任何帮助。

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export interface person {
    name: string;
    age: number;
}

interface State {
    personArray: person[];
}

interface Props {

}


class ProfileData extends React.Component<{}, person> {
    public render() {
        return (
            <section>
                <section>
                    <h3>profile 1</h3>
                    <div>{this.props.name}</div>
                </section>
            </section>
        )

    }
}

export class Profile extends React.Component<Props, State> {
    public state: State;
    public props: Props;
    constructor(props: Props){
        super(props);
            this.state = {
                personArray: [
                    {
                        name: 'bazaaa', 
                        age: 42
                    },
                    {
                        name: 'louis', 
                        age: 24
                    }
                ]
            };
    }

    public render() {
        let profile1 = this.state.personArray[0];
        return (
            <ProfileData 
            name={profile1.name}
            />
        )
    }
}

＆＃13;

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>

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Answer 1

您忘记在name类定义中将ProfileData声明为React属性。这样的事情应该有效：

class ProfileData extends React.Component<{name: string}, person> {