Benchmark: $.each vs for cycle for array of object 2

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js'></script>

Script Preparation code:

var array = [{id: "1", name: "name1"}, {id: "2", name: "name2"}, {id: "3", name: "name3"}, {id: "4", name: "name4"}, {id: "5", name: "name5"}];

Tests:

$.each
$.each(array, function(index, value) { console.log("index" + index + ",value:" + value.id + "," + value.name); });
for cycle
for (let index = 0; index < array.length; ++index) { console.log("index" + index + ",value:" + array[index].id + "," + array[index].name); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
$.each
for cycle

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0

Browser/OS: Firefox 78 on Windows

View result in a separate tab

Test name	Executions per second
$.each	4124.6 Ops/sec
for cycle	4465.7 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested, along with the pros and cons of each approach.

**Benchmark Definition:**

The benchmark is comparing two approaches to iterate over an array of objects:

1. **$.each**: This method is part of the jQuery library, which is used for DOM manipulation in web development. The `.each()` method executes a callback function for each element in the array.
2. **For cycle**: A traditional JavaScript loop that uses a counter variable to iterate over the array elements.

**Script Preparation Code:**

The code creates an array of objects with `id` and `name` properties:
```javascript
var array = [
  { id: "1", name: "name1" },
  { id: "2", name: "name2" },
  { id: "3", name: "name3" },
  { id: "4", name: "name4" },
  { id: "5", name: "name5" }
];
```
**Html Preparation Code:**

The code includes the jQuery library from a CDN:
```html
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.js'></script>
```
**Individual Test Cases:**

There are two test cases:

1. **$.each**: The benchmark definition uses the `$.each()` method to iterate over the array, with a callback function that logs the index and value of each element.
2. **For cycle**: The benchmark definition uses a traditional JavaScript for loop to iterate over the array, logging the index and value of each element.

**Pros and Cons:**

* **$.each**:
	+ Pros:
		- Less error-prone than manual loops, as the callback function handles indexing and iteration.
		- Often faster, since jQuery optimizations can reduce overhead.
	+ Cons:
		- Requires the jQuery library, which may not be necessary for every project.
		- May have additional overhead due to the library's complexity.
* **For cycle**:
	+ Pros:
		- No external dependencies or overhead from a library.
		- Can be more efficient for small arrays or simple iterations.
	+ Cons:
		- More error-prone, as indexing and iteration must be manually managed.
		- May result in slower performance due to additional overhead.

**Library:**

The jQuery library is used for the `$`.each()` method. Its purpose is to simplify DOM manipulation and event handling, but also provides utility functions like `$.each()` for iterating over arrays.

**Special JS Feature/Syntax:**

There's no special JavaScript feature or syntax being tested in this benchmark. The focus is on comparing two basic iteration approaches.

**Other Alternatives:**

Other iteration methods that could be used instead of `$`.each()` and traditional for cycles include:

* `forEach()`: A modern JavaScript method introduced in ECMAScript 2015, which provides a similar interface to `.each()`.
* `Array.prototype.forEach()`: The built-in `forEach()` method, which is often faster than jQuery's equivalent.
* Manual iteration using `for...in`, `for...of`, or indexing-based loops.

These alternatives might be worth considering in certain scenarios, depending on the specific requirements and performance constraints of your project.

Related benchmarks:

$.each vs for cycle for array of object 2 (version: 0)

Comparing performance of: $.each vs for cycle

Created: 4 years ago by: Guest

Jump to the latest result

$.each

for cycle

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):