Run results for: useCallback vs without

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

without

1.1M/s

usecallback

867K/s

View exact numbers

Test name	Executions per second
✓ without	1,110,104 Ops/sec
usecallback	866,934 Ops/sec

HTML Preparation code:

<!doctype html>
<html>
  <head>
    <title>This is the title of the webpage!</title>
  </head>
  <body>
  	<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> 
  </body>
</html>

Script Preparation code:

function ComponentWithUseCallback() {
  const testFunction = React.useCallback(evt => evt.preventDefault(), []);
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}


function ComponentWithoutUseCallback() {
  const testFunction = evt => evt.preventDefault();
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}

Tests:

without
ReactDOM.render(React.createElement(ComponentWithUseCallback), document.getElementById('root'))
usecallback
ReactDOM.render(React.createElement(ComponentWithoutUseCallback), document.getElementById('root'))