/Javascript/React/Hide component blur react hooks

Hide component blur react hooks

const React,{ useState, useMemo } = React

const usToggleOnFocus = (initialState = false) => {
  const [show, toggle] = useState(initialState);
  
  const eventHandlers = useMemo(() => ({
    onFocus: () => toggle(true),
    onBlur: () => toggle(false),
  }), []);

  return [show, eventHandlers];
}

const Demo = () => {
  const [show, eventHandlers] = usToggleOnFocus();

  return (
    <div>
      <input {...eventHandlers} />
      {show && <div>Content</div>}
    </div>
  );
};

ReactDOM.render(
  <Demo />,
  demo
);

Source: stackoverflow.com

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