reactjs - typescript 和 react : Pass component in props and return it from a function

Question

我正在使用 React 和 TypeScript 编写一个表单组件。我将 Formik 用于表单逻辑。我想通过 <Form />组件一个特定的形式作为 Prop 并渲染它。这是我尝试过的:

import { Formik, FormikProps } from "formik";
import React, { PureComponent, ReactNode } from "react";

export interface Props {
  component: ReactNode; // TODO: Change to one of LoginForm or RegisterForm.
  handleSubmit(): void;
}

export class Form extends PureComponent<Props> {
  renderForm = (formikProps: FormikProps<any>): ReactNode => {
    const { component: FormComponent } = this.props;
    return <FormComponent {...formikProps} />;
  };

  render() {
    const { handleSubmit } = this.props;
    return <Formik render={this.renderForm} />;
  }
}

export default Form;

问题是我返回 <FormComponent /> 的行抛出错误:

[ts] JSX element type 'FormComponent' does not have any construct or call signatures.

renderForm必须返回一个 ReactNode，所以我无法更改 ReactNode至 ComponentType (后者将解决 JSX 错误)。

在 TypeScript 中如何做到这一点？

编辑 所以我通过这样做让它工作(感谢 estus ):

import { Formik, FormikProps } from "formik";
import React, { PureComponent, ReactElement } from "react";

export interface Props {
  component: React.ComponentType<any>; // TODO: Change to one of LoginForm or RegisterForm.
  handleSubmit(): void;
}

export class Form extends PureComponent<Props> {
  renderForm = (formikProps: FormikProps<any>): ReactElement<any> => {
    const { component: FormComponent } = this.props;
    return <FormComponent {...formikProps} />;
  };

  render() {
    const { handleSubmit } = this.props;
    return <Formik render={this.renderForm} />;
  }
}

export default Form;

Answer 1

ReactNode 是 React element 类型，而 component prop 应该是 React component。

它可能应该是:

export interface Props {
  component: React.ComponentType;
  handleSubmit(): void;
}

renderForm has to return a ReactNode, so I can't change ReactNode to ComponentType (the latter would resolve the JSX error).

component prop 和 renderForm 返回类型没有关联。前者是组件，后者是元素。