<script src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js'></script><script> var $jq171 = $.noConflict(true);</script><script src='https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js'></script><script> var $jq1113 = $.noConflict(true);</script><script src='https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js'></script><script> var $jq1124 = $.noConflict(true);</script><script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script><script> var $jq224 = $.noConflict(true);</script><script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><script> var $jq331 = $.noConflict(true);</script><script src="https://code.jquery.com/jquery-3.4.1.min.js"></script><script> var $jq341 = $.noConflict(true);</script><script src="https://code.jquery.com/jquery-3.6.0.min.js"></script><script> var $jq360 = $.noConflict(true);</script><div> <ul id="menu"> <li class="menu-item">1</li> <li class="menu-item">2</li> <li class="menu-item">3</li> <li class="menu-item">4</li> </ul></div>function tests($) { $(".menu-item").eq(2).closest("ul").css({ "background-color": "red" }).parent().css({ "border": "1px solid blue" }).append($("<p></p>").text("Text.").css({ "background-color": "green" })).end().end().remove(); console.log('tests' + $);}tests($jq171);tests($jq1113);tests($jq1124);tests($jq224);tests($jq331);tests($jq341);tests($jq360);--enable-precise-memory-info flag.
| Test case name | Result |
|---|---|
| Test jQuery 1.7.1 | |
| Test jQuery 1.11.3 | |
| Test jQuery 1.12.4 | |
| Test jQuery 2.2.4 | |
| Test jQuery 3.3.1 | |
| Test jQuery 3.4.1 | |
| Test jQuery 3.6.0 |
| Test name | Executions per second |
|---|---|
| Test jQuery 1.7.1 | 13170.1 Ops/sec |
| Test jQuery 1.11.3 | 14549.5 Ops/sec |
| Test jQuery 1.12.4 | 14356.9 Ops/sec |
| Test jQuery 2.2.4 | 14234.9 Ops/sec |
| Test jQuery 3.3.1 | 16673.4 Ops/sec |
| Test jQuery 3.4.1 | 15110.8 Ops/sec |
| Test jQuery 3.6.0 | 12958.2 Ops/sec |
Let's break down what is tested in the provided JSON benchmark.
Benchmark Definition
The benchmark measures the performance of different versions of jQuery, specifically the number of executions per second.
Options compared
The benchmark compares the following options:
Pros and Cons of each approach
Each version of jQuery has its own strengths and weaknesses:
Old versions (1.7.1 and 1.11.3) are less optimized for modern browsers and may have performance issues.
Intermediate versions (2.2.4) might still be compatible with older browsers but may not offer significant performance improvements over newer versions.
Newer versions (3.3.1, 3.4.1, and 3.6.0) typically include:
Device and Browser Considerations
The benchmark is executed on a Macintosh with Safari 17, which means it's running on a modern browser environment. However, the performance results might vary depending on other factors such as:
Keep in mind that the benchmark only measures the execution rate of the JavaScript code generated by jQuery, without considering other aspects like DOM manipulation, event handling, or user experience.
Conclusion
The benchmark provides a snapshot of the relative performance differences between various versions of jQuery. By understanding these differences, developers can choose the most suitable version for their project based on factors such as compatibility, performance requirements, and security concerns.
