import React, { Component } from "react";

class App extends Component {
  state = { messages: [], input: "" };
  onInput = e => {
    this.setState({ input: e.target.value });
  };
  onSubmit = e => {
    e.preventDefault();
    //the real submit action code here
    this.setState({ input: "" });
  };
  render() {
    const { messages, input } = this.state;
    return (
      <div>
        <hr />
        <input type="text" value={input} onChange={this.onInput} />
        <button onClick={this.onSubmit}>Submit</button>
      </div>
    );
  }
}

export default App;