Benchmark: With or without useMemo2

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 ComponentWithoutUseMemo({method}) {
  if (method && method.method_status_id === "voided" ) return React.createElement('div', {}, 'Voided');
  
  return React.createElement('div', {}, 'Not voided');
}

function ComponentWithUseMemo({method}) {
	const voided = React.useMemo(() => {
        if (!method) return false;
        return method.method_status_id === "voided";
    }, [method]);
  
    if (voided) return React.createElement('div', {}, 'Voided');
  
  	return React.createElement('div', {}, 'Not voided');
}

Tests:

Without useMemo
ReactDOM.render(React.createElement(ComponentWithoutUseMemo, { method: { method_status_id: "voided" }}), document.getElementById('root'))
With useMemo
ReactDOM.render(React.createElement(ComponentWithUseMemo, { method: { method_status_id: "voided" }}), document.getElementById('root'))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Without useMemo
With useMemo

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser/OS: Chrome 121 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Without useMemo	1142800.9 Ops/sec
With useMemo	1038199.1 Ops/sec

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided benchmark, "With or without useMemo2", tests the performance difference between two React components: `ComponentWithoutUseMemo` and `ComponentWithUseMemo`. The purpose of this benchmark is to compare the execution speed of these two components when rendering a specific HTML structure.

**What's tested?**

1. **Components**: Two React components are defined:
	* `ComponentWithoutUseMemo`: A simple component that returns either "Voided" or "Not voided" based on a conditional statement.
	* `ComponentWithUseMemo`: The same component, but with the addition of the `React.useMemo` hook to memoize the condition result.
2. **Rendering**: Each component is rendered using `ReactDOM.render()` with different HTML structures:
	* Without `useMemo`, the component returns either "Voided" or "Not voided" directly.
	* With `useMemo`, the component uses the `React.useMemo` hook to memoize the condition result and then renders based on that value.

**Options compared**

The benchmark compares two approaches:

1. **Without useMemo**: The component returns the result directly, without using any optimization techniques like memoization.
2. **With useMemo**: The component uses `React.useMemo` to memoize the condition result, which can improve performance by avoiding unnecessary re-renders.

**Pros and Cons**

**Without useMemo**:

Pros:

* Simple and easy to understand
* No additional dependencies or overhead

Cons:

* Potential for unnecessary re-renders if the condition changes frequently
* May not take advantage of caching or memoization

**With useMemo**:

Pros:

* Can improve performance by avoiding unnecessary re-renders
* Takes advantage of caching and memoization to reduce computational overhead

Cons:

* Adds an additional dependency (`method`) to the component's props
* Requires understanding of the `React.useMemo` hook and its implications on performance

**Library and syntax**

The benchmark uses the following libraries:

1. **React**: A JavaScript library for building user interfaces.
2. **ReactDOM**: A companion library to React, providing functionality for rendering React components to the DOM.

The benchmark also uses some JavaScript features, including:

* `const` declaration
* Arrow functions
* Template literals

However, it does not use any special or advanced JavaScript features like async/await, classes, or modern syntax (e.g., ES6 modules).

**Other alternatives**

If you wanted to modify this benchmark or create a new one, here are some alternative approaches:

1. **Use a different optimization technique**: Instead of using `React.useMemo`, consider using other optimization techniques like lazy loading, conditional rendering, or caching.
2. **Change the component structure**: Experiment with different component structures, such as using higher-order components or recursive components.
3. **Add more complexity**: Introduce additional variables, dependencies, or conditions to make the benchmark more realistic and challenging.
4. **Use a different browser or device**: Test the performance difference on different browsers or devices to see how it affects the results.

By exploring these alternatives, you can gain a deeper understanding of optimization techniques in React and JavaScript, as well as how they interact with different component structures and rendering approaches.

Related benchmarks:

With or without useMemo2 (version: 0)

Comparing performance of: Without useMemo vs With useMemo

Created: 2 years ago by: Guest

Jump to the latest result

Without useMemo

With useMemo

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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