react typescript props functional component code example

Example 1: react functional component typescript

import React from 'react';

interface Props {
  
}

export const App: React.FC<Props> = (props) => {
  return (
    <>
     <SomeComponent/>
    </>
  );
};

Example 2: react typescript props

// Declare the type of the props
type CarProps = {
  name: string;
  brand: string;
  price;
}

// usage 1
const Car: React.FC<CarProps> = (props) => {
  const { name, brand, price } = props;
  // some logic
}

// usage 2
const Car: React.FC<CarProps> = ({ name, brand, price }) => {
	// some logic
}

Example 3: state in react typescript

interface IProps {
}

interface IState {
  playOrPause?: string;
}

class Player extends React.Component<IProps, IState> {
  // ------------------------------------------^
  constructor(props: IProps) {
    super(props);

    this.state = {
      playOrPause: 'Play'
    };
  }

  render() {
    return(
      <div>
        <button
          ref={playPause => this.playPause = playPause}
          title={this.state.playOrPause} // in this line I get an error
        >
          Play
        </button>
      </div>
    );
  }
}