TypeScript and React: Pass component in props and return it from a function



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2















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;









share|improve this question






























    2















    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;









    share|improve this question


























      2












      2








      2








      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;









      share|improve this question
















      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;






      reactjs typescript typescript-typings react-props typescript-types






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      edited Nov 13 '18 at 21:26







      J. Hesters

















      asked Nov 13 '18 at 21:09









      J. HestersJ. Hesters

      1,0661540




      1,0661540






















          1 Answer
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          active

          oldest

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          1














          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.






          share|improve this answer























          • Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

            – J. Hesters
            Nov 13 '18 at 21:26











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          1 Answer
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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          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.






          share|improve this answer























          • Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

            – J. Hesters
            Nov 13 '18 at 21:26















          1














          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.






          share|improve this answer























          • Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

            – J. Hesters
            Nov 13 '18 at 21:26













          1












          1








          1







          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.






          share|improve this answer













          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.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 13 '18 at 21:20









          estusestus

          78.5k23116234




          78.5k23116234












          • Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

            – J. Hesters
            Nov 13 '18 at 21:26

















          • Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

            – J. Hesters
            Nov 13 '18 at 21:26
















          Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

          – J. Hesters
          Nov 13 '18 at 21:26





          Hi estus, thank you for helping me again 😊I made an edit to the post after your answer, I was just wondering if that is what you meant with your answer?

          – J. Hesters
          Nov 13 '18 at 21:26



















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