Benchmark: MemoTest - MeasureThat.net

HTML Preparation code:

<div id="root"></div>

<script src="https://unpkg.com/react@18.2.0/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@18.2.0/umd/react-dom.development.js"></script>
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>

Script Preparation code:

function ChildComponent(props) {
  return React.createElement("div", props);
}

const OptimizedChildComponent = React.memo(ChildComponent);


function UseMemoAndOptimizedChild(props) {
  const result = React.useMemo(() => {
      return props.handler(props.voices, props.tabIndex);
  }, [props.handler, props.voices,props.tabIndex]);
  return React.createElement(OptimizedChildComponent, {},result);
}

function UseMemoAlone(props) {
  const result = React.useMemo(() => {
      return props.handler(props.voices, props.tabIndex);
  }, [props.handler, props.voices,props.tabIndex]);
  return React.createElement(ChildComponent, {},result );
}

function NoMemo(props) {
  const result = props.handler(props.voices, props.tabIndex);
  return React.createElement(ChildComponent, {},result);
}

function getTextFallback(voices,tabIndex) {  
 const voicesArr = voices.split(',');
 return voicesArr[tabIndex] || voicesArr?.[0] 
}

var propCases = [{
  handler: getTextFallback,
  voices: 'foo',
  tabIndex: 0
}, {
  handler: getTextFallback,
  voices: 'foo,bar,tar',
  tabIndex: 2
}, {
  handler: getTextFallback,
  voices: 'foo,bar,tar',
  tabIndex: 1
}];

Tests:

NoMemo
propCases.forEach((props) => { ReactDOM.render(React.createElement(NoMemo, props, null), root); });
UseMemoAndOptimizedChild
propCases.forEach((props) => { ReactDOM.render(React.createElement(UseMemoAndOptimizedChild, props, null), root); });
UseMemoAlone
propCases.forEach((props) => { ReactDOM.render(React.createElement(UseMemoAlone, props, null), root); });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
NoMemo
UseMemoAndOptimizedChild
UseMemoAlone

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser/OS: Chrome 112 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
NoMemo	9424.7 Ops/sec
UseMemoAndOptimizedChild	8566.2 Ops/sec
UseMemoAlone	9087.5 Ops/sec

MemoTest (version: 0)

Comparing performance of: NoMemo vs UseMemoAndOptimizedChild vs UseMemoAlone

Created: one year ago by: Guest

Jump to the latest result

NoMemo

UseMemoAndOptimizedChild

UseMemoAlone

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A