Benchmark: testCacheRange - MeasureThat.net

Tests:

cacheRange
const htmlString = '<h1 level="1">1</h1><h2 level="2">2</h2><h3 level="3">3</h3><h4 level="4">4</h4><h6 level="6">5</h6><h6 level="6">6</h6>' let range; const extractHeadingFromHtml = (htmlString) => { const headings = []; if (!range) { range = document.createRange(); } const fragment = range.createContextualFragment(htmlString); const hElements = fragment.querySelectorAll('h1,h2,h3,h4,h5,h6'); for (let i = 0; i < hElements.length; i++) { const { textContent, tagName } = hElements[i]; headings.push({ text: textContent || '', level: Number(tagName[1]), }); } return headings; }; extractHeadingFromHtml(htmlString)
noCacheRange
const htmlString = '<h1 level="1">1</h1><h2 level="2">2</h2><h3 level="3">3</h3><h4 level="4">4</h4><h6 level="6">5</h6><h6 level="6">6</h6>' const extractHeadingFromHtml = (htmlString) => { const headings = []; const fragment = document.createRange().createContextualFragment(htmlString); const hElements = fragment.querySelectorAll('h1,h2,h3,h4,h5,h6'); for (let i = 0; i < hElements.length; i++) { const { textContent, tagName } = hElements[i]; headings.push({ text: textContent || '', level: Number(tagName[1]), }); } return headings; }; extractHeadingFromHtml(htmlString)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
cacheRange
noCacheRange

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

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**Benchmark Overview**

The benchmark, named `testCacheRange`, measures the performance of two different approaches for extracting heading information from an HTML string in JavaScript. The test case consists of two individual tests: `cacheRange` and `noCacheRange`.

**Script Preparation Code and Benchmark Definition**

The script preparation code is empty, indicating that no specific setup or initialization is required before running the benchmark.

The benchmark definition is a JSON object containing metadata about the benchmark, including its name, description (null in this case), script preparation code (empty), and HTML preparation code (also empty). The `Benchmark Definition` section contains two test cases:

*   **cacheRange**: This test case uses both caching and non-caching approaches to extract heading information from an HTML string. It creates a document range object and uses the `createContextualFragment` method to parse the HTML string.
*   **noCacheRange**: This test case also uses non-caching approach only to extract heading information from an HTML string.

**Options Compared**

The two tests, `cacheRange` and `noCacheRange`, compare the performance of caching and non-caching approaches when extracting heading information from an HTML string. The caching approach reuses a cached document range object for subsequent iterations, whereas the non-caching approach creates a new document range object for each iteration.

**Pros and Cons**

*   **Caching Approach (cacheRange)**:
    *   Pros:
        *   Reuses cached document range objects, which can lead to better performance due to reduced DOM manipulation.
        *   May reduce memory allocation and garbage collection overhead.
    *   Cons:
        *   May introduce additional memory usage and cache management complexity.
        *   Could lead to slower performance if the caching mechanism is inefficient or causes unnecessary rejections of cached fragments.
*   **Non-Caching Approach (noCacheRange)**:
    *   Pros:
        *   Eliminates potential memory usage issues associated with caching.
        *   May simplify code and reduce complexity due to fewer cache-related concerns.
    *   Cons:
        *   Requires creating a new document range object for each iteration, which can lead to slower performance.

**Library Usage**

The `createRange` method is used in both tests. The `createRange` method is part of the Web API's DOM Range interface and allows you to create a range object that represents a section of a document. This method is likely included in most modern JavaScript engines, including V8 (used by Chrome).

**Special JS Features or Syntax**

There are no special features or syntax used in this benchmark.

**Alternatives**

For similar benchmarks, consider using other online platforms like:

*   jsPerf: A popular platform for comparing the performance of different JavaScript code snippets.
*   BenchmarkJS: Another widely used benchmarking tool that allows you to create and compare JavaScript benchmarks.

Related benchmarks:

testCacheRange (version: 0)

Comparing performance of: cacheRange vs noCacheRange

Created: 3 years ago by: Guest

Jump to the latest result

cacheRange

noCacheRange

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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