Benchmark: Javascript closest method vs closestParent prototype function

HTML Preparation code:

  <div class="1" id="1">
            <div class="2">
                <div class="3">
                    <div class="4">
                        <div class="5">
                            <div class="5">
                                <div class="6">
                                    <div class="7">
                                        <div class="8">
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                                                <div class="10">
                                                    <div class="11">
                                                        <div class="12">
                                                            <div class="13">
                                                                <div class="14">
                                                                    <div class="15">
                                                                        <div class="16" id="helloWorld">
                                                                            <div class="17">
                                                
                                                                            </div>
                                                                        </div>
                                                                    </div>
                                                                </div>
                                                            </div>
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                    </div>
                </div>
            </div>
        </div>

Script Preparation code:

var class17 = document.getElementsByClassName("17");
Object.prototype.closestParent = function(tag, multi) {
    var el=this.parentNode; var newTag = tag.slice(1); var g = 0; 
    if(tag[0] === "."){while(el && g < multi){if(el.className !== newTag){g++;el=el.parentNode;}else{return el};}};
    if(tag[0] === "#"){while(el && g < multi){if(el.id !== newTag){g++;el=el.parentNode;}else{return el};}};  
};

Tests:

closest method
for(i=0;i<100;i++){ console.log(class17[0].closest("#helloWorld")) }
closestParent function
for(i=0;i<100;i++){ console.log(class17[0].closestParent("#helloWorld", 1)) }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
closest method
closestParent function

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition and explain what's being tested, compared, and analyzed.

**Benchmark Definition**

The provided JSON represents a JavaScript microbenchmark that tests two approaches: `closest` and `closestParent`. Both methods are used to find an element within a nested DOM structure.

**Methods Compared**

Two methods are compared:

1. `closest`: This method is not explicitly defined in the benchmark definition, but it's implied to be similar to the `closest` method in jQuery.
2. `closestParent`: This method is custom-defined and implemented as part of the benchmark code. It recursively traverses the DOM tree upwards from the given element until it finds a matching tag.

**Options Compared**

The two methods are compared in terms of performance, specifically:

* `closestParent function`:
	+ Uses recursion to traverse the DOM tree.
	+ Takes an additional argument `multi`, which likely controls the depth of traversal.
* `closest method` (implied):
	+ Similar to jQuery's `closest` method.
	+ Not explicitly defined in the benchmark, but assumed to be implemented similarly.

**Pros and Cons**

Here are some pros and cons of each approach:

* `closestParent function`:
	+ Pros: More flexible, as it allows for custom traversal depth control through the `multi` argument. Can handle more complex DOM structures.
	+ Cons: Recursion can lead to performance issues if not implemented carefully. May not be suitable for very deep or complex DOM trees.
* `closest method` (implied):
	+ Pros: More straightforward, efficient, and likely to be well-optimized by browsers.
	+ Cons: Less flexible than `closestParent`, as it doesn't allow for custom traversal depth control.

**Library Usage**

The benchmark uses the `document.getElementsByClassName` method, which is a built-in JavaScript API. However, it's worth noting that this method can be less efficient and more brittle than other approaches, such as using query selectors or CSS selectors.

**Special JS Feature/ Syntax**

There are no specific JavaScript features or syntax mentioned in the benchmark definition.

**Other Alternatives**

Some alternative approaches to comparing `closest` and `closestParent` methods include:

* Using a library like jQuery or Lodash for a more standardized and efficient implementation.
* Implementing the closest method using query selectors (e.g., `document.querySelector`) instead of DOM traversal.
* Using a different data structure, such as a graph or tree data structure, to represent the DOM hierarchy.

Overall, the benchmark provides a useful comparison between two custom JavaScript methods for finding elements in a nested DOM structure.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/119.0

Browser/OS: Firefox 119 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
closest method	1496.5 Ops/sec
closestParent function	1654.5 Ops/sec

Related benchmarks:

Javascript closest method vs closestParent prototype function (version: 0)

Comparing performance of: closest method vs closestParent function

Created: 3 years ago by: Guest

Jump to the latest result

closest method

closestParent function

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):