Run results for: Component re-renders 3

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36

Browser: Chrome 98

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Baseline1	474672.7 Ops/sec
Baseline2	481388.6 Ops/sec
TestFunctionalComponent	185930.2 Ops/sec
TestFunctionalComponentWithLogic	188132.9 Ops/sec
TestMemoizedFunctionalComponent	169792.7 Ops/sec
TestClassComponent	178865.9 Ops/sec
TestClassPureComponent	167436.4 Ops/sec
Baseline3	440085.1 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 createProps(count) {
  const props = {}
  for(var i = 0; i < count; i++) {
  	props[i] = Math.random()
  }
  return props
}

function Baseline(props) {
  return React.createElement('button', {
  }, 'Click me!');
}

const FunctionalComponent = (props) => {
  return React.createElement('div')
}

const FunctionalComponentWithLogic = (props) => {
  var i = 5
  const a = {}
  
  if(i > 1 && i > 2 && i > 3) {
    a.b = 'somestring'
  }
  return React.createElement('div')
}


class ClassComponent extends React.Component { 
  render() {
    return React.createElement('div')
  }
}

class ClassPureComponent extends React.PureComponent { 
  render() {
    return React.createElement('div')
  }
}

const MemoizedFunctionalComponent = React.memo(FunctionalComponent)

function TestFunctionalComponent () {
  return React.createElement(FunctionalComponent, createProps(10))
}

function TestFunctionalComponentWithLogic () {
  return React.createElement(FunctionalComponentWithLogic, createProps(10))
}

function TestMemoizedFunctionalComponent () {
  return React.createElement(MemoizedFunctionalComponent, createProps(10))
}

function TestClassComponent () {
  return React.createElement(ClassComponent, createProps(10))
}

function TestClassPureComponent () {
  return React.createElement(ClassPureComponent, createProps(10))
}

Tests:

Baseline1
ReactDOM.render(React.createElement(Baseline), document.getElementById('root'))
Baseline2
ReactDOM.render(React.createElement(Baseline), document.getElementById('root'))
TestFunctionalComponent
ReactDOM.render(React.createElement(TestFunctionalComponent), document.getElementById('root'))
TestFunctionalComponentWithLogic
ReactDOM.render(React.createElement(TestFunctionalComponentWithLogic), document.getElementById('root'))
TestMemoizedFunctionalComponent
ReactDOM.render(React.createElement(TestMemoizedFunctionalComponent), document.getElementById('root'))
TestClassComponent
ReactDOM.render(React.createElement(TestClassComponent), document.getElementById('root'))
TestClassPureComponent
ReactDOM.render(React.createElement(TestClassPureComponent), document.getElementById('root'))
Baseline3
ReactDOM.render(React.createElement(Baseline), document.getElementById('root'))

Run results for: Component re-renders 3

Baseline1

Baseline2

TestFunctionalComponent

TestFunctionalComponentWithLogic

TestMemoizedFunctionalComponent

TestClassComponent

TestClassPureComponent

Baseline3