debounce_class_component.js

import debounce from "lodash.debounce";

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = { results: [] };
    this.onInput = debounce(this.onInput.bind(this), 500);
  }

  onInput = (e) => {
    // same content...
  };

  render() {
    // same content...
  }
}