Benchmark: React.Fragment vs ArrayRender (fix#0)

HTML Preparation code:

<script crossorigin src="https://unpkg.com/react@16/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@16/umd/react-dom.production.min.js"></script>

<div id="app1"></div>
<div id="app2"></div>

Script Preparation code:

var cards = function () {
  return new Array(28).fill(null).map(function (card) {
    return new Array(4).fill(null).map(function (_, index) {
      return "azaza".concat(index);
    });
  });
}();

console.log(cards)

var FragmentCard = function FragmentCard(props) {
  return React.createElement(React.Fragment, null, props.words.map(function (feature) {
    return React.createElement(React.Fragment, null, feature, React.createElement("div", null));
  }));
};

var FragmentCards = function FragmentCards(props) {
  return props.cards.map(function (words) {
    return React.createElement(FragmentCard, {
      words: words
    });
  });
};

var ArrayCard = function ArrayCard(props) {
  return React.createElement(React.Fragment, null, props.words.reduce(function (result, feature, index, _ref) {
    var length = _ref.length;
    result.push(feature, index < length - 1 && React.createElement("div", {
      key: "s".concat(index)
    }));
    return result;
  }, []));
};

var ArrayCards = function ArrayCards(props) {
  return props.cards.map(function (words) {
    return React.createElement(ArrayCard, {
      words: words
    });
  });
};

var app1 = document.getElementById('app1');
var app2 = document.getElementById('app2');

Tests:

Fragment
var a = React.createElement(FragmentCards, { cards }) ReactDOM.render(a, app1)
Array
var a = React.createElement(ArrayCards, { cards }) ReactDOM.render(a, app2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Fragment
Array

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36

Browser/OS: Chrome 78 on Linux

View result in a separate tab

Test name	Executions per second
Fragment	6109.8 Ops/sec
Array	9704.2 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the benchmark.

**What is being tested?**

The provided JSON represents two JavaScript microbenchmarks: `React.Fragment` and `ArrayRender`. The benchmarks are designed to compare the performance of rendering React fragments versus array-based rendering.

**Options compared**

Two options are being compared:

1. **React Fragment**: This option uses React's fragment component to render a list of cards.
2. **Array Render**: This option uses an array-based approach to render the same list of cards, without using React's fragment component.

**Pros and Cons**

Here are some pros and cons of each approach:

* **React Fragment**
	+ Pros:
		- Easier to read and maintain code
		- Less chance of bugs due to explicit rendering
	+ Cons:
		- May incur overhead due to React's virtual DOM
		- Could be slower than array-based rendering for very large datasets
* **Array Render**
	+ Pros:
		- Potentially faster for large datasets, as it avoids the overhead of React's virtual DOM
		- Simpler implementation, with less chance of bugs
	+ Cons:
		- More complex code to manage the array and rendering logic
		- Less readable and maintainable code

**Library usage**

The benchmarks use React and ReactDOM libraries. Specifically:

* `React` is used for rendering React components.
* `ReactDOM` is used for rendering the React components to the DOM.

**Special JS features or syntax**

No special JavaScript features or syntax are being tested in these benchmarks.

**Other considerations**

When choosing between these two approaches, consider the trade-offs between code readability, maintainability, and performance. If you need a simple, easy-to-understand solution for small datasets, React's fragment component might be the better choice. However, if you're working with large datasets or need optimal performance, the array-based approach could be a better option.

**Other alternatives**

Some other alternatives to consider when rendering lists of data in React include:

* Using `Map` instead of `Array`: This can provide a more concise and expressive way to render data.
* Using `key` props: This allows you to specify a unique key for each item in the list, which can improve performance.
* Using memoized components: This can help optimize performance by caching previously rendered components.

These alternatives are not included in this specific benchmark, but they might be worth exploring if you're looking for ways to optimize your React code.

Related benchmarks:

React.Fragment vs ArrayRender (fix#0) (version: 0)

Comparing performance of: Fragment vs Array

Created: 5 years ago by: Guest

Jump to the latest result

Fragment

Array

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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