Benchmark: React Hooks vs. Inline 2

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="inline"></div>
<div id="hooks"></div>

Script Preparation code:


function ComponentWithInlineFunction() {
  const [__, forceRerender] = React.useState();
  React.useEffect(() => {
    window.forceRerenderInline = forceRerender;
  }, []);
  const clickMe = evt => evt.preventDefault();
  return React.createElement('button', {onClick: clickMe}, 'Click me!');
}
ReactDOM.render(React.createElement(ComponentWithInlineFunction), document.getElementById('inline'))

function ComponentWithUseCallback() {
  const [__, forceRerender] = React.useState();
  React.useEffect(() => {
    window.forceRerenderHooks = forceRerender;
  }, []);
  const clickMe = React.useCallback(evt => evt.preventDefault(), []);
  return React.createElement('button', {onClick: clickMe}, 'Click me!');
}
ReactDOM.render(React.createElement(ComponentWithUseCallback), document.getElementById('hooks'))

Tests:

Inline Updates
window.forceRerenderInline({})
Hooks Updates
window.forceRerenderHooks({})
Inline Mount
ReactDOM.render(React.createElement(ComponentWithInlineFunction), document.getElementById('inline'))
Hooks Mount
ReactDOM.render(React.createElement(ComponentWithUseCallback), document.getElementById('hooks'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Inline Updates
Hooks Updates
Inline Mount
Hooks Mount

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:132.0) Gecko/20100101 Firefox/132.0

Browser/OS: Firefox 132 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Inline Updates	888794.8 Ops/sec
Hooks Updates	1080303.6 Ops/sec
Inline Mount	759676.8 Ops/sec
Hooks Mount	907568.1 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the benchmark and explain what's being tested, compared, and their pros and cons.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark that compares two approaches for handling updates in React applications:

1. **Inline Updates**: This approach uses inline functions to update state directly within the component's render method.
2. **Hooks Updates**: This approach uses React Hooks (`useState` and `useEffect`) to manage state and side effects.

**Script Preparation Code**

The script preparation code defines two components, `ComponentWithInlineFunction` and `ComponentWithUseCallback`, which will be used as the test cases for each benchmark. These components:

* Render a button with an "Click me!" label.
* Use inline functions (`window.forceRerenderInline`) or React Hooks (`window.forceRerenderHooks`), respectively, to manage state updates.

**Html Preparation Code**

The HTML preparation code sets up the necessary environment for running the benchmark. It includes:

* Links to React and React DOM libraries.
* Two `div` elements with IDs "inline" and "hooks", which will be used as targets for rendering the components.

**Test Cases**

There are four test cases, each representing a different aspect of the benchmark:

1. **Inline Updates**: Tests how long it takes to update state using inline functions.
2. **Hooks Updates**: Tests how long it takes to update state using React Hooks.
3. **Inline Mount**: Tests how long it takes to render the component using inline functions.
4. **Hooks Mount**: Tests how long it takes to render the component using React Hooks.

**Library and Purpose**

* **React**: A JavaScript library for building user interfaces.
* **React DOM**: A library that enables rendering React components in a DOM (Document Object Model).
* **useState** and **useEffect**: Hooks provided by React for managing state and side effects in functional components.

**Special JS Feature or Syntax**

None of the test cases use special JavaScript features or syntax beyond what's required for React and its Hooks. However, it's worth noting that using `useCallback` (not explicitly used in this benchmark) can help prevent unnecessary re-renders by memoizing functions.

**Pros and Cons**

Here are some general pros and cons of each approach:

* **Inline Updates**:
	+ Pros: Can lead to more efficient updates when done correctly.
	+ Cons: Can result in performance issues if not implemented carefully, as it may involve re-rendering the entire component tree.
* **Hooks Updates**:
	+ Pros: Provides a clean and declarative way to manage state and side effects.
	+ Cons: May incur additional overhead due to the creation of function invocations (e.g., `useEffect`) or updates to internal state.

**Alternatives**

Other alternatives for handling updates in React applications include:

* **Class Components**: Using class components with lifecycle methods (`componentDidMount`, `componentDidUpdate`) can be an alternative to hooks.
* **Custom Hooks**: Creating custom hooks that combine multiple hooks can provide more flexibility but may also introduce additional complexity.

Overall, the benchmark provides a useful comparison of two approaches for handling updates in React applications. The results will help developers and engineers understand the relative performance characteristics of each approach in different scenarios.

Related benchmarks:

React Hooks vs. Inline 2 (version: 2)

Comparing performance of: Inline Updates vs Hooks Updates vs Inline Mount vs Hooks Mount

Created: 6 years ago by: Registered User

Jump to the latest result

Inline Updates

Hooks Updates

Inline Mount

Hooks Mount

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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