How to add stencil's IntrinsicElements to react's IntrinsicElements

Question

I am planning to use some stencil components inside a React App using the 0.0.0-experimental version, so I can use my components with <kebab-case> . I am rather new to typescript and would like to understand how I can add stencils auto-generated IntrinsicElements to my React IntrinsicElements. What I do right now inside my React component is:

import React from "react";
import { JSX as stencils } from "stencil-project/dist/types/components"; // (I am using a yarn mono-repo)
import { defineCustomElements } from 'stencil-project/dist/esm/loader';

defineCustomElements();


declare global { 
    namespace JSX { 
        interface IntrinsicElements extends stencils.IntrinsicElements {} 
    } 
};

export const App = () => {
    return (<my-component></my-component>);
}

It works, but it feels like it's not the right way. Can you point me to some documentation or other helpful resources? https://stenciljs.com/docs/typed-components tells me I can do it, but it doesn't tell me how.

Answer 1

You have to add you components in InstrictElements interface like following:

// Some global.d.ts file.
// Importing React namespace is important
import React from 'react';

interface MyStencilComponentProp {
  myProp: number;
}

declare global {
  namespace JSX {

    interface IntrinsicElements {
      'my-stencil-comp': MyStencilComponentProp;
    }
  }
}

Then in your react components, you can do use like other native HTML Elements:

export function ReactComp(props: any) {

  return (
    <>
      <my-stencil-comp myProp={10} />
    </>
  );
};

Using the declaration merging feature of TypeScript, the IntrinsicElement interface defined by @types/react and your d.ts file would be merged into a single interface.