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How to create components in React?

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There are two possible ways to create a component.

Function Components: This is the simplest way to create a component. Those are pure JavaScript functions that accept props object as first parameter and return React elements:

function Greeting({ message }) {

  return <h1>{`Hello, ${message}`}</h1>

}

Class Components: You can also use ES6 class to define a component. The above function component can be written as:

class Greeting extends React.Component {

  render() {

    return <h1>{`Hello, ${this.props.message}`}</h1>

  }

}

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