Benchmark: JQuery.grep vs Array.filter

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: "1"}, {id: "2", name: "2"}, {id: "3", name: "3"}, {id: "4", name: "4"}, {id: "5", name: "5"}]
var needId = "3";

Tests:

$.grep
$.grep(array, function (element) { return element.id === needId; });
Array.filter
array.filter(function (element) { return element.id === needId; });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
$.grep
Array.filter

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
$.grep	20876058.0 Ops/sec
Array.filter	27132214.0 Ops/sec

Autogenerated LLM Summary (model llama3.1:latest, generated 6 months ago):

LLMs can make mistakes. Check important info.

Let's break down the benchmark definition and results.

**Benchmark Description**

The benchmark compares two different approaches to find an element in an array:

1. Using `$.grep` from jQuery
2. Using the native `Array.filter()` method

**Test Cases**

We have two test cases:

1. **$.grep**: This test case uses the `$.grep()` function from jQuery to search for an element with a specific ID (`needId`) in the `array`.
	* The script preparation code creates an array of objects and sets the `needId` variable.
	* The benchmark definition is the actual code that gets executed: `$().grep(array, function (element) { return element.id === needId; });`
2. **Array.filter**: This test case uses the native `Array.filter()` method to search for an element with a specific ID (`needId`) in the `array`.
	* The script preparation code is the same as the previous test case.
	* The benchmark definition is the actual code that gets executed: `array.filter(function (element) { return element.id === needId; });`

**Library and Feature Explanation**

* **jQuery**: A popular JavaScript library that provides a lot of utility functions for DOM manipulation, events, and more. In this test case, we're using the `$.grep()` function to search for an element in the array.
* **Array.filter()**: This is a native JavaScript method (introduced in ECMAScript 2015) that creates a new array with all elements that pass the test implemented by the provided callback function. In this test case, we're using it to filter out elements based on their `id` property.

**Pros and Cons**

* **$.grep()**: Pros:
	+ Widely supported in older browsers.
	+ Easy to use for simple filtering tasks.
*   Con: Not as efficient or flexible as native methods like Array.filter().
*   **Array.filter()**: Pros:
    + Native JavaScript method, so it's fast and efficient.
    + Very flexible, allowing complex filtering logic.
*   Cons:
    + Introduced in ECMAScript 2015 (ES6), so may not be supported in older browsers.

**Other Considerations**

When choosing between these approaches, consider the following:

* If you need to support older browsers or a wide range of environments, `$.grep()` might be a safer choice.
* For modern browsers and performance-critical code, using the native `Array.filter()` method is likely a better option.

**Alternatives**

If you're not familiar with jQuery or prefer not to use it, there are other ways to achieve similar filtering results:

* Use a dedicated filtering library like Lodash or Underscore.js.
* Utilize modern JavaScript features like array methods (e.g., `filter()`, `map()`) for more efficient and flexible filtering.

Let me know if you have any further questions!

Related benchmarks:

JQuery.grep vs Array.filter (version: 0)

Compare how to find need element with different functions

Comparing performance of: $.grep vs Array.filter

Created: 2 years ago by: Guest

Jump to the latest result

$.grep

Array.filter

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.1:latest, generated 6 months ago):