Run results for: React Hooks vs. Inline, useMemo, memo (React 18)

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36

Browser: Chrome 146

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
Inline function	592716.6 Ops/sec
Hooks	709920.9 Ops/sec
Without useMemo	602718.0 Ops/sec
with useMemo	899002.0 Ops/sec
Child without memo	752265.4 Ops/sec
Child with memo	800950.5 Ops/sec

HTML Preparation code:

<script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
<div id="root"></div>

Script Preparation code:

function ComponentWithInlineFunction() {
    const clickMe = () => {};
    return React.createElement('button', {
        onClick: clickMe
    }, 'Click me!');
}

function ComponentWithUseCallback() {
    const clickMe = React.useCallback(() => {}, []);
    return React.createElement('button', {
        onClick: clickMe
    }, 'Click me!');
}

function ComponentWithoutUseMemo() {
    const obj = {
        x: 1,
        y: 1
    };
    return React.createElement('h1', {
        data: obj
    }, 'ComponentWithoutUseMemo');
}

function ComponentWithUseMemo() {
    const obj = React.useMemo(() => ({
        x: 1,
        y: 1
    }), []);
    return React.createElement('h1', {
        data: obj
    }, 'ComponentWithUseMemo');
}

const ChildWithoutMemo = () => {
    return React.createElement('div', null, null);
}

const ChildWithMemo = React.memo(ChildWithoutMemo);

function ComponentWithoutMemorizedChild() {
    const [count, setCount] = React.useState(0);
    React.useEffect(() => {
        if (count < 10000) {
            setCount(c => c + 1);
        }
    })
    return React.createElement(ChildWithoutMemo, null, null);
}

function ComponentWithMemorizedChild() {
    const [count, setCount] = React.useState(0);
    React.useEffect(() => {
        if (count < 10000) {
            setCount(c => c + 1);
        }
    })
    return React.createElement(ChildWithMemo, null, null);
}

Tests:

Inline function
ReactDOM.render(React.createElement(ComponentWithInlineFunction), document.getElementById('root'))
Hooks
ReactDOM.render(React.createElement(ComponentWithUseCallback), document.getElementById('root'))
Without useMemo
ReactDOM.render(React.createElement(ComponentWithoutUseMemo), document.getElementById('root'))
with useMemo
ReactDOM.render(React.createElement(ComponentWithUseMemo), document.getElementById('root'))
Child without memo
ReactDOM.render(React.createElement(ComponentWithoutMemorizedChild), document.getElementById('root'))
Child with memo
ReactDOM.render(React.createElement(ComponentWithMemorizedChild), document.getElementById('root'))

Run results for: React Hooks vs. Inline, useMemo, memo (React 18)

Comparing performance of: Inline Function vs Hooks vs Without useMemo vs With useMemo vs Child without memo vs Child with memo (React 18)

Inline function

Hooks

Without useMemo

with useMemo

Child without memo

Child with memo