Benchmark: testesttest - MeasureThat.net

Tests:

slice
const buyerGalleryData = { adminVideos: null, adminImages: [{url: '1'},{url: '2'},{url: '3'}], videos: [{url: '1'},{url: '2'},{url: '3'}], images: null } ; const numOfMediaToShow =4; let count = 0; let mediaDisplayData= []; for (const [key, mediaData] of Object.entries(buyerGalleryData)) { if (count === numOfMediaToShow) { break; } if (mediaData) { const requiredNumOfMedia = numOfMediaToShow - count; const mediaDataLength = mediaData.length; const numOfMediaToAdd = Math.min(requiredNumOfMedia, mediaDataLength); mediaDisplayData = mediaDisplayData.concat( mediaData.slice(0, numOfMediaToAdd), ); count += numOfMediaToAdd; } console.log(mediaDisplayData); } return mediaDisplayData;
concat
const buyerGalleryData = { adminVideos: null, adminImages: [{url: '1'},{url: '2'},{url: '3'}], videos: [{url: '1'},{url: '2'},{url: '3'}], images: null }; const numOfMediaToShow =4; let count = 0; let mediaDisplayData = []; for (const [key, mediaData] of Object.entries(buyerGalleryData)) { if (count === numOfMediaToShow) { break; } if (mediaData) { const isVideoMedia = key === 'adminVideos' || key === 'videos'; for (const media of mediaData) { mediaDisplayData.push({ ...media, type: isVideoMedia ? 'video' : 'image', }); count++; if (count === numOfMediaToShow) { break; } } } } return mediaDisplayData;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
slice
concat

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'll break down what's being tested on the provided JSON benchmark.

**Benchmark Overview**

The benchmark compares two approaches to slice and concatenate arrays in JavaScript:

1. Using `Array.prototype.slice()`
2. Using template literals (concats) with the spread operator (`...`)

**Options Being Compared**

* **Slice**: This method uses `Array.prototype.slice()` to extract a subset of elements from the original array.
	+ Pros:
		- Efficient for small arrays
		- Simple and intuitive implementation
	+ Cons:
		- Can be slow for large arrays due to the overhead of creating a new array object
		- May not perform well if the sliced array is a subset of the original array
* **Concat**: This method uses template literals with the spread operator (`...`) to concatenate arrays.
	+ Pros:
		- Fast and efficient for both small and large arrays
		- Can be more flexible than slice, as it allows for concatenating arrays of different lengths
	+ Cons:
		- May require additional memory allocation for intermediate results (in the case of a large array being concatenated)
		- Can lead to slower performance if the template literal is complex or contains many elements

**Library and Special JS Features**

There are no external libraries used in these benchmarks. However, JavaScript templates literals (``${...}``) and the spread operator (`...`) are special features that allow for concise string interpolation.

**Test Case Analysis**

The test cases compare two variations of slicing and concatenating arrays:

1. **Slice**:
	* Uses `Array.prototype.slice()` to extract a subset of elements from the original array.
	* Logs the intermediate result (`mediaDisplayData`) to the console, allowing for observation of performance differences.
2. **Concat**:
	* Uses template literals with the spread operator (`...`) to concatenate arrays.
	* Converts each media object into an object with a `type` property (either `'video'` or `'image'`) and pushes it onto the `mediaDisplayData` array.

**Other Alternatives**

If you're interested in exploring alternative approaches, consider:

1. **Array.prototype.reduce()**: An iterative method for reducing arrays to a single value.
2. **Array.prototype.forEach()**: A method for iterating over arrays without modifying them.
3. **Destructuring assignment**: A concise way to extract values from objects into variables.

Keep in mind that the best approach will depend on your specific use case and performance requirements.

Related benchmarks:

testesttest (version: 0)

Comparing performance of: slice vs concat

Created: 3 years ago by: Guest

Jump to the latest result

slice

concat

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):