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jQuery vs getElementById vs querySelector jquery 3.6.3
(version: 0)
Comparing speed of getting element by id with jQuery vs Vanilla JS with getElementById and querySelector
Comparing performance of:
jQuery vs getElementById vs querySelector
Created:
3 years ago
by:
Guest
Go to the latest result
HTML Preparation code:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.3/jquery.min.js"></script> <div id="testElement" class="test class list classes"></div>
Tests:
jQuery
var el = $("#testElement")[0];
getElementById
var el = document.getElementById('testElement');
querySelector
var el = document.querySelector("#testElement");
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
jQuery
getElementById
querySelector
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36
Browser/OS:
Chrome 132 on Windows
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=586375" width="100%" height="500px"></iframe>
getElementById
48.5M/s
querySelector
11.4M/s
jQuery
6.5M/s
View exact numbers
Test name
Executions per second
✓
getElementById
48,480,960 Ops/sec
querySelector
11,356,318 Ops/sec
jQuery
6,533,070 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided JSON data and explain what's being tested. **Benchmark Definition** The benchmark is designed to compare the speed of three different methods for retrieving an HTML element by its ID: jQuery, `document.getElementById`, and `document.querySelector`. **Options Compared** Here are the options being compared: 1. **jQuery**: Using the jQuery library to select the element by its ID. 2. **getElementById**: Using the native JavaScript method `document.getElementById` to retrieve the element. 3. **querySelector**: Using the native JavaScript method `document.querySelector` to retrieve the element. **Pros and Cons** Here are some pros and cons of each approach: 1. **jQuery**: * Pros: jQuery provides a simple and intuitive API for selecting elements, making it easy to write code that works across different browsers and versions. * Cons: jQuery adds an extra layer of complexity to the DOM, as it manipulates the document object model to create a virtual representation of the DOM. This can lead to slower performance compared to native JavaScript methods. 2. **getElementById**: * Pros: `document.getElementById` is a native JavaScript method that operates directly on the DOM, making it generally faster and more lightweight than jQuery. * Cons: This method requires the element's ID to be explicitly set in the HTML code, which can be inconvenient for dynamic content or complex layouts. 3. **querySelector**: * Pros: `document.querySelector` provides a flexible and powerful way to select elements based on various criteria, such as class names, IDs, and attributes. * Cons: This method is also native JavaScript, but it may be slower than `getElementById` due to its more complex matching algorithms. **Library Used** In this benchmark, the jQuery library is used in version 3.6.3. jQuery's primary purpose is to simplify DOM manipulation and provide a consistent way of selecting elements across different browsers and versions. **Special JavaScript Feature/ Syntax** None are explicitly mentioned in the provided data. However, it's worth noting that `querySelector` and `querySelectorAll` were introduced in ECMAScript 2015 (ES6) as part of the modern JavaScript standardization efforts. **Other Alternatives** If you're interested in alternative approaches to selecting elements by ID, here are a few options: 1. **CSS Selectors**: You can use CSS selectors to select elements based on their IDs or classes. 2. **Vanilla JavaScript with `document.querySelectorAll` and `.filter()`**: While not as lightweight as native JavaScript methods, you can achieve similar results using vanilla JavaScript's `querySelectorAll` method and the `.filter()` method. Keep in mind that these alternatives may have different performance characteristics compared to native JavaScript methods or jQuery.
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