Benchmark: array concat23 - MeasureThat.net

Script Preparation code:

s = [1,2,3,4];
x = [5,6,7,8];

Tests:

1
result = s.concat(x);
2
s.push.apply(x)

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:

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

LLMs can make mistakes. Check important info.

I'd be happy to help you understand what's being tested in this JavaScript microbenchmark.

**Benchmark Definition**

The benchmark definition is represented by a JSON object that contains the following information:

* `Name`: The name of the benchmark, which in this case is "array concat23".
* `Description`: An empty string, indicating that there is no description provided for this benchmark.
* `Script Preparation Code`: A snippet of JavaScript code that prepares the input arrays `s` and `x` before running the benchmark. In this case, `s = [1,2,3,4];\r\nx = [5,6,7,8];`.
* `Html Preparation Code`: An empty string, indicating that there is no HTML preparation code needed.

**Individual Test Cases**

The benchmark consists of two individual test cases:

1. `result = s.concat(x);`
2. `s.push.apply(x)`

These two test cases are run in sequence to measure the performance difference between concatenating arrays using the `concat()` method versus using the `push()` and `apply()` methods.

**Options Compared**

The benchmark is comparing two options:

1. **Concatenation using `concat()```**: This approach creates a new array by combining the elements of `s` and `x` into a single array.
2. **Push-and-Apply method`: This approach uses the `push()` method to add elements to the end of `x`, while passing an iterator reference (`apply()` function) as an argument.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Concatenation using `concat()```**:
	+ Pros: Simple, straightforward implementation; easy to read and understand.
	+ Cons: Creates a new array, which can lead to increased memory usage and slower performance for large datasets.
* **Push-and-Apply method`**: 
	+ Pros: Can be more efficient than concatenation, as it avoids creating a new array. However, this approach may have unexpected side effects if not used carefully.
	+ Cons: Requires careful handling of the iterator reference (`apply()` function) to ensure proper behavior.

**Library and Special JS Feature**

There is no library being used in this benchmark. Additionally, there are no special JavaScript features or syntax being used beyond what's standard in modern JavaScript.

**Other Alternatives**

If you're interested in exploring alternative approaches for array concatenation or modification, here are a few options:

* **Array.prototype.push()`**: Similar to the Push-and-Apply method, but without requiring an iterator reference.
* **Array.prototype.slice()`**: Creates a shallow copy of `x`, which can be more efficient than concatenating using `concat()`.
* **WebAssembly (WASM)**: A binary format that allows for faster execution of JavaScript code. However, this requires specialized expertise and infrastructure.

Keep in mind that the choice of approach depends on your specific use case, performance requirements, and personal preference as a developer.

Related benchmarks:

array concat23 (version: 0)

Comparing performance of: 1 vs 2

Created: 6 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):