Benchmark: React useCallback hook vs inline function with state react 17

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/umd/react-dom.production.min.js"></script>
<div id="root"></div>

Script Preparation code:

function ComponentWithInlineFunction() {
    const [state, setState] = React.useState('test');
    const clickMe = evt => {
        evt.preventDefault();
        console.log(state);
    }
    return React.createElement('button', {
        onClick: clickMe
    }, 'Click me!');
}

function ComponentWithUseCallback() {
    const [state, setState] = React.useState('test');
    const clickMe = React.useCallback(evt => {
        evt.preventDefault();
        console.log(state);
    }, [state]);
    return React.createElement('button', {
        onClick: clickMe
    }, 'Click me!');
}

Tests:

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

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Inline
Hooks

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

**Overview**

The provided JSON represents a benchmark test case on MeasureThat.net, which compares the performance of two approaches in React: using an inline function with state (`ComponentWithInlineFunction`) and using the `useCallback` hook (`ComponentWithUseCallback`). The test case measures how each approach affects rendering and execution speed.

**Benchmarked Options**

Two options are compared:

1. **Inline Function**: Using a traditional inline function with state to handle events.
	* Pros:
		+ Easy to understand and implement.
		+ No additional dependencies or complexity required.
	* Cons:
		+ May lead to slower rendering due to the creation of a new scope for each event handler.
2. **useCallback Hook**: Using the `useCallback` hook from React to memoize function definitions.
	* Pros:
		+ Optimizes rendering by reusing the same function instance across multiple renderings.
		+ Reduces the number of DOM mutations during rendering.

**Library Used**

The `React` library is used in both test cases. The `React.useState` hook is used to create a state variable and its corresponding `setState` function, while the `React.useCallback` hook is used to memoize the event handler function (`clickMe`).

**Special JS Feature/Syntax**

No special JavaScript features or syntax are explicitly mentioned in the provided JSON.

**Other Considerations**

* The test case uses a relatively recent version of React (17.0.2) and assumes that the underlying web browser is Chrome 114.
* The test environment is set up with a simple HTML structure consisting of a `<div>` element (`#root`) where the component will be rendered.

**Alternatives**

Other alternatives for optimizing event handling in React might include:

1. **useMemo**: Similar to `useCallback`, but memoizes function bodies instead of entire functions.
2. **React.PureComponent` or `React.Suspense`: Using a higher-order component (HOC) like `React.PureComponent` can help optimize rendering by reducing unnecessary re-renders.
3. **Optimizing event handling**: Techniques like debouncing or throttling events can reduce the number of times an event handler is called, which may also impact performance.

Please note that this is not an exhaustive list, and there might be other alternatives depending on specific use cases and requirements.

Related benchmarks:

React useCallback hook vs inline function with state react 17 (version: 1)

Comparing performance of: Inline vs Hooks

Created: 4 years ago by: Registered User

Jump to the latest result

Inline

Hooks

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):