Run results for: React useCallback hook vs inline function

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Hooks

1.8M/s

Inline

1.3M/s

View exact numbers

Test name	Executions per second
✓ Hooks	1,821,461 Ops/sec
Inline	1,302,786 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'))