HTML Preparation code:
x
 
1
<!doctype html>
2
<html>
3
  <head>
4
    <title>This is the title of the webpage!</title>
5
  </head>
6
  <body>
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    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.13.1/umd/react.production.min.js"></script>
8
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.13.1/umd/react-dom.production.min.js"></script>
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    <div id="root"></div> 
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  </body>
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</html>
12
Script Preparation code:
 
function ComponentWithOuterFunctionUseCallback() {
  const [state, setState] = React.useState();
  function functionToTest(evt) {
    evt.preventDefault();
    setState('test');
  }
  const testFunction = React.useCallback(functionToTest, []);
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}
function ComponentWithUseCallback() {
  const [state, setState] = React.useState();
  const testFunction = React.useCallback(evt => {evt.preventDefault(); setState('test');}, []);
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}
function ComponentWithInlineFunction() {
  const [state, setState] = React.useState();
  function testFunction(evt) {
    evt.preventDefault();
    setState('test');
  }
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}
function ComponentWithArrowFunction() {
  const [state, setState] = React.useState();
  const testFunction = (evt) => {
    evt.preventDefault();
    setState('test');
  }
  return React.createElement('button', {onClick: testFunction}, 'Test click');
}
const testFunctionInlineOutside = function(evt, setState) {
  return evt.preventDefault();
  setState('test');
}
function ComponentWithInlineFunctionOutside() {
  const [state, setState] = React.useState();
  return React.createElement('button', {onClick: (evt) => testFunctionArrowOutside(evt, setState)}, 'Test click');
}
const testFunctionArrowOutside = (evt, setState) => {
  evt.preventDefault();
  setState('test');
}
function ComponentWithArrowFunctionOutside() {
  const [state, setState] = React.useState();
  return React.createElement('button', {onClick: (evt) => testFunctionArrowOutside(evt, setState)}, 'Test click');
}
Tests:
  • ComponentWithOuterFunctionUseCallback

     
    ReactDOM.render(React.createElement(ComponentWithOuterFunctionUseCallback), document.getElementById('root'))
  • ComponentWithUseCallback

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

     
    ReactDOM.render(React.createElement(ComponentWithInlineFunction), document.getElementById('root'))
  • ComponentWithArrowFunction

     
    ReactDOM.render(React.createElement(ComponentWithArrowFunction), document.getElementById('root'))
  • ComponentWithInlineFunctionOutside

     
    ReactDOM.render(React.createElement(ComponentWithInlineFunctionOutside), document.getElementById('root'))
  • ComponentWithArrowFunctionOutside

     
    ReactDOM.render(React.createElement(ComponentWithArrowFunctionOutside), document.getElementById('root'))
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    ComponentWithOuterFunctionUseCallback
    ComponentWithUseCallback
    ComponentWithInlineFunction
    ComponentWithArrowFunction
    ComponentWithInlineFunctionOutside
    ComponentWithArrowFunctionOutside

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Chrome 119 on Mac OS X 10.15.7
View result in a separate tab
Test name Executions per second
ComponentWithOuterFunctionUseCallback 404100.9 Ops/sec
ComponentWithUseCallback 419080.1 Ops/sec
ComponentWithInlineFunction 358398.7 Ops/sec
ComponentWithArrowFunction 358240.9 Ops/sec
ComponentWithInlineFunctionOutside 359661.9 Ops/sec
ComponentWithArrowFunctionOutside 354462.6 Ops/sec