Benchmark: Slice vs splice forked

Script Preparation code:

var arrayOne = [1, 3, 5, 11, 13];
var index = arrayOne.indexOf(5);

Tests:

Splice
arrayOne.splice(index, 1);
Slice
arrayOne.slice(0, index)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Splice
Slice

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition and test cases to explain what's being tested, compared, and their pros/cons.

**Benchmark Definition**

The benchmark is designed to compare the performance of two approaches: `splice` and `slice`. The test is specifically for a JavaScript array method.

**Script Preparation Code**

Before running the tests, the script preparation code creates an example array `arrayOne` with values 1, 3, 5, 11, 13. It also finds the index of the value 5 in the array using `indexOf()`. This is likely done to set up a specific scenario for testing.

**Html Preparation Code**

There's no HTML preparation code provided, which means the test only concerns itself with the JavaScript execution and doesn't include any web page loading or rendering steps.

**Individual Test Cases**

There are two test cases:

1. **Splice**: The `splice()` method is used to remove an element from the array at a specified index.
2. **Slice**: The `slice()` method returns a shallow copy of a portion of an array, excluding the end index (if provided).

**Comparison and Options**

The benchmark tests the performance of both approaches:

1. **Splice**:
	* Pros: Can be more efficient than creating a new array using slice, especially when dealing with large arrays.
	* Cons: Modifies the original array, which might not be desirable in all scenarios.
2. **Slice**:
	* Pros: Does not modify the original array and can be more predictable in terms of performance.
	* Cons: Creates a new array, which can consume more memory, especially for large arrays.

**Other Considerations**

When choosing between `splice` and `slice`, consider the following factors:

* **Performance**: If you need to remove elements from an array frequently, `splice` might be faster. However, if you only need to access a subset of an array, `slice` is likely a better choice.
* **Memory usage**: If memory is a concern, `slice` creates a new array without modifying the original one.

**Library Usage**

There are no libraries mentioned in this benchmark definition.

**Special JS Feature or Syntax**

The benchmark doesn't use any special JavaScript features or syntax. It only tests basic array methods (`splice()` and `slice()`).

**Alternatives**

If you're looking for alternatives to this benchmark, consider:

* Other array methods like `forEach()`, `map()`, `filter()`, or `reduce()`.
* Performance benchmarks using other programming languages or frameworks.
* Tests that focus on memory allocation, garbage collection, or concurrent execution.

In summary, the MeasureThat.net benchmark compares the performance of two JavaScript array methods: `splice()` and `slice()`. The test is useful for understanding the trade-offs between these two approaches in terms of performance and memory usage.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Browser/OS: Chrome 87 on Windows

View result in a separate tab

Test name	Executions per second
Splice	1092111.0 Ops/sec
Slice	1019996.7 Ops/sec

Related benchmarks:

Slice vs splice forked (version: 0)

Comparing performance of: Splice vs Slice

Created: 4 years ago by: Guest

Jump to the latest result

Splice

Slice

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):