crie um componente em react in javascript

To create a component in React using JavaScript, you can follow these steps:

1. Create a new JavaScript file for your component, let's call it MyComponent.js.
2. In the file, import React at the top and create a new function component using the function keyword:

index.tsx
import React from 'react';

function MyComponent() {
  return (
    <div>
      <h1>Hello, World!</h1>
    </div>
  );
}
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3. Customize your component by adding any HTML or JavaScript code you need inside the return statement.
4. Export your component so that it can be used in other parts of your application:

index.tsx
export default MyComponent;
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5. You can now use your new component in any other file by importing it and including it in the render method:

index.tsx
import React from 'react';
import MyComponent from './MyComponent';

function MyApp() {
  return (
    <div>
      <h1>Welcome to my app</h1>
      <MyComponent />
    </div>
  );
}

export default MyApp;
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Note that this is just a basic example of how to create a component in React using JavaScript. In practice, you will likely need to pass props to your component or use hooks to manage state.