Run results for: React Hooks vs. Inline

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; motorola one vision) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.111 Mobile Safari/537.36

Browser: Chrome Mobile 81

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Inline	30013.1 Ops/sec
Hooks	49891.0 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script>
<div id="root"></div>

Script Preparation code:

function ComponentWithInlineFunction() {
  const clickMe = evt => evt.preventDefault();
  return React.createElement('button', {onClick: clickMe}, 'Click me!');
}

function ComponentWithUseCallback() {
  const clickMe = React.useCallback(evt => evt.preventDefault(), []);
  return React.createElement('button', {onClick: clickMe}, 'Click me!');
}

Tests:

Inline
ReactDOM.render(React.createElement(ComponentWithInlineFunction), document.getElementById('root'))
Hooks
ReactDOM.render(React.createElement(ComponentWithUseCallback), document.getElementById('root'))