Run results for: React 18.2 useCallback hook vs. function

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Mobile Safari/537.36

Browser: Chrome Mobile 112

Operating system: Android

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
ComponentWithUseCallback	980140.7 Ops/sec
ComponentWithInlineFunction	1030267.7 Ops/sec
ComponentWithArrowFunction	1056025.9 Ops/sec
ComponentWithOuterFunctionUseCallback	1070099.9 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/18.2.0/umd/react.production.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.2.0/umd/react-dom.production.min.js"></script>
	<div id="root"></div> 
  </body>
</html>

Script Preparation code:

function ComponentWithOuterFunctionUseCallback() {
  function functionToTest(evt) {
	evt.preventDefault();
  }
  const testFunction = React.useCallback(functionToTest, []);
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}

function ComponentWithUseCallback() {
  const testFunction = React.useCallback(evt => evt.preventDefault(), []);
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}

function ComponentWithInlineFunction() {
  function testFunction(evt) {
    evt.preventDefault();
  }
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}

function ComponentWithArrowFunction() {
  const testFunction = (evt) => {
    evt.preventDefault();
  }
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}

var root = ReactDOM.createRoot(document.getElementById('root'));

Tests:

ComponentWithUseCallback
root.render(React.createElement(ComponentWithUseCallback))
ComponentWithInlineFunction
root.render(React.createElement(ComponentWithInlineFunction))
ComponentWithArrowFunction
root.render(React.createElement(ComponentWithArrowFunction))
ComponentWithOuterFunctionUseCallback
root.render(React.createElement(ComponentWithOuterFunctionUseCallback))