Benchmark: asdasdasd - MeasureThat.net

Tests:

1
const games = [1, 2, 3, 4, 5]; activeGames = [...games]; activeGames[0] = 2;
2
const games = [1, 2, 3, 4, 5]; activeGames = games.map((game, index) => index === 0 ? 2 : game);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

I'll break down the benchmark and explain what's being tested, compared, and the pros/cons of different approaches.

**Benchmark Overview**

MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks. The provided benchmark consists of two test cases:

1. Test Case 1:
```javascript
const games = [1, 2, 3, 4, 5];
activeGames = [...games];
activeGames[0] = 2;
```
This test case measures the performance of assigning a new value to an array element using the spread operator (`...`) and then modifying that element.

2. Test Case 2:
```javascript
const games = [1, 2, 3, 4, 5];
activeGames = games.map((game, index) => index === 0 ? 2 : game);
```
This test case measures the performance of using the `map()` function to create a new array with modified elements.

**Comparison**

Both test cases compare two approaches:

* **Using spread operator (`...`)**: This approach creates a shallow copy of the original array and then assigns a new value to one of its elements. The pros are:
	+ Efficient in terms of memory allocation, as it only allocates a new array object.
	+ Fast, since it involves a simple assignment operation.
* **Using `map()` function**: This approach creates a new array with modified elements by applying the mapping function to each element. The cons are:
	+ Inefficient in terms of memory allocation, as it allocates a new array object and copies all original elements.
	+ Slow due to the overhead of creating a new array object and copying elements.

**Library and Framework**

In neither test case is there an explicit reference to a library or framework. However, `map()` is a built-in JavaScript function that can be considered part of the ECMAScript standard.

**JavaScript Features and Syntax**

There are no special JavaScript features or syntax used in these benchmark definitions.

**Alternatives**

Other alternatives for testing performance-critical code snippets could include:

1. V8 Profiler (Chrome DevTools): A built-in tool for profiling JavaScript engine performance.
2. JavaScript Benchmarking Frameworks:
	* Benchmark.js
	* js-benchmark
	* PerfJs
3. WebAssembly-based benchmarking tools:
	* WebAssembly Binary Utilities (WASM-BU)
	* WebAssembly Binary Disassembler (WBDis)
4. High-level testing frameworks that support performance benchmarking, such as Jest or Mocha.

Keep in mind that the choice of alternative depends on the specific requirements and use cases for your benchmarking needs.

Related benchmarks:

asdasdasd (version: 0)

asd

Comparing performance of: 1 vs 2

Created: 7 years ago by: Guest

Jump to the latest result

1

2

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):