Benchmark: sspread test - MeasureThat.net

Tests:

speed of spread
const a = [1,2,3] const b = [4,5] const c = [...a, ...b]
speed of concat
const a = [1,2,3] const b = [4,5] const c = a.concat(b)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
speed of spread
speed of concat

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down the provided JSON data and explain what's being tested in the benchmark.

**Benchmark Definition**

The `Benchmark Definition` is a string that describes the operation being measured. In this case, there are two benchmarks:

1. "const a = [1,2,3]\r\nconst b = [4,5]\r\nconst c = [...a, ...b]"

This benchmark tests the speed of the spread operator (`...`) when concatenating arrays.

2. "const a = [1,2,3]\r\nconst b = [4,5]\r\nconst c = a.concat(b)"

This benchmark tests the speed of the `concat()` method when concatenating arrays.

**Options Compared**

In each benchmark, there are two options being compared:

1. Using the spread operator (`...`) to concatenate arrays.
2. Using the `concat()` method to concatenate arrays.

**Pros and Cons of Each Approach**

1. **Spread Operator (``` ... ``` )**
	* Pros:
		+ More concise and expressive way to concatenate arrays.
		+ Can be faster due to the optimized implementation in modern JavaScript engines.
	* Cons:
		+ May not work correctly with all types of data, such as null or undefined values.
		+ May have performance issues if used excessively, especially for large arrays.
2. **Concat() Method**
	* Pros:
		+ Works consistently across all browsers and environments.
		+ Can be a safer choice when dealing with untrusted input data.
	* Cons:
		+ Less concise and less expressive than the spread operator.
		+ May have performance overhead due to the method call.

**Library Usage**

In this benchmark, no libraries are explicitly mentioned. However, it's worth noting that the `Array.prototype.concat()` method is a built-in method in JavaScript, which means that any library usage would be implicit and not directly related to the benchmark.

**Special JS Features or Syntax**

There are no special JS features or syntax used in this benchmark. The code snippets use standard JavaScript syntax and do not rely on any specific ES6+ features, such as classes, modules, or async/await.

**Other Alternatives**

For measuring performance and benchmarking, alternative tools and frameworks exist, including:

1. **Benchmark.js**: A popular open-source benchmarking library for Node.js.
2. **JSPerf**: A simple, web-based benchmarking tool for JavaScript code.
3. **Google Benchmark**: A C++-based benchmarking framework that can be used with JavaScript using a JavaScript wrapper.

These alternatives offer different features and functionality compared to the `MeasureThat.net` platform, but they share the goal of measuring performance and benchmarking code execution time.

Related benchmarks:

sspread test (version: 0)

Comparing performance of: speed of spread vs speed of concat

Created: 5 years ago by: Guest

Jump to the latest result

speed of spread

speed of 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):