Benchmark: React 1 - MeasureThat.net

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:

const DEFAULT_PROPS = {c: 1, d: 1};

const clickMe = () => {
	console.log('hello world');
}

function InlineTest(props) {
    const {a, b, c, d} = {...DEFAULT_PROPS, ...props}

	return React.createElement('button', {}, 'Click me!');
}

function ReferenceTest(props) {
//    const {a, b, c, d} = React.useMemo() => ({...DEFAULT_PROPS, ...props}), [props]);

	return React.createElement('button', {}, 'Click me!');
}

Tests:

Inline
ReactDOM.render(React.createElement(InlineTest, { a: 1, b: 2}), document.getElementById('root'))
Reference
ReactDOM.render(React.createElement(ReferenceTest, { a: 1, b: 2}), document.getElementById('root'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Inline
Reference

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_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser/OS: Chrome 131 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Inline	934710.4 Ops/sec
Reference	947936.4 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated one year ago):

LLMs can make mistakes. Check important info.

The provided benchmark is designed to evaluate the performance differences between two React component rendering approaches: **InlineTest** and **ReferenceTest**. Both components ultimately render a button, but they handle props in slightly different ways.

### Options Compared
1. **InlineTest**:
   - Utilizes a straightforward destructuring of props with default values.
   - The component returns a button element created with `React.createElement`.

2. **ReferenceTest**:
   - Commented-out code suggests a use of `React.useMemo()`, which, if enabled, would memoize the props and only recompute when the props change, potentially optimizing performance by avoiding unnecessary recalculations.
   - However, the current implementation of `ReferenceTest` does not utilize `useMemo`, making its functionality similar to `InlineTest`.

### Pros and Cons
- **InlineTest**:
  - **Pros**:
    - Simple and straightforward. Easy to understand and implement.
    - Every render uses the fresh props, which might be adequate for performance based on how often props change.
  - **Cons**:
    - Every render creates new instances of objects, which can lead to performance overhead when there are many re-renders.
    
- **ReferenceTest**:
  - **Pros** (if `useMemo` were applied):
    - Performance optimization by storing the input values and preventing unnecessary renders.
    - Efficient when the same props are passed multiple times without changes.
  - **Cons**:
    - If `useMemo` is not implemented (as seen in the benchmark), it does not provide any advantage over InlineTest.
    - Adding complexity that may not be necessary for simpler components or infrequent updates.

### Libraries
The benchmark employs **React** and **ReactDOM** from a CDN. React is a JavaScript library for building user interfaces, especially single-page applications, and provides features for building component-based interfaces. ReactDOM is a package that provides DOM-specific methods that can be used at the top level of an app to enable an efficient way to interact with the DOM from React components.

### JavaScript Features and Considerations
The code primarily uses standard JavaScript functions and ES6 syntax (like arrow functions, destructuring assignment, and the spread operator). No special JavaScript features beyond regular functions and the React API are exploited.

### Alternatives
- Instead of using `React.createElement`, one could use JSX, which is more syntactically appealing and produces more readable code:
  ```jsx
  function InlineTest(props) {
      const { a, b, c, d } = { ...DEFAULT_PROPS, ...props };
      return <button>Click me!</button>;
  }
  ```
- Another alternative could be using other libraries like Vue.js or Angular for component rendering, depending on the project requirements. Each of these frameworks/libraries has its approach to handling updates and efficiency but may offer different performance characteristics based on the complexity and structure of components.

### Conclusions
The benchmark reveals not only the raw performance metrics but also insights on best practices for component optimization in React. If `ReferenceTest` were fully implemented with `useMemo`, it would likely demonstrate substantial benefits in scenarios with frequent renders and static props. It's crucial to select the right rendering technique based on the specific use case to optimize performance effectively.

Related benchmarks:

React 1 (version: 1)

Comparing performance of: Inline vs Reference

Created: one year ago by: Guest

Jump to the latest result

Inline

Reference

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated one year ago):