Odtnhj

I'm writing a Form component with React and TypeScript. I use Formik for the form logic. I want to pass the <Form /> component a specific form as a prop and render it. Here is what I tried:

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;

The problem is that the line where I return the <FormComponent /> throws the error:

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

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

How would one do this in TypeScript?

Edit
So I got it working by doing this (thanks to 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;

ReactNode is React element type, while component prop is expected to be React component.

It likely should be:

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 and renderForm return type aren't connected. The former is a component and the latter is an element.