Benchmark: 3333test - MeasureThat.net

Tests:

test1234567
const a = []; for(let i = 0; i < 1000000; i++) { a.push(i); } a.splice(0, -1)
test23456a
const a = []; for(let i = 0; i < 1000000; i++) { a.push(i); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test1234567
test23456a

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its test cases.

**Benchmark Overview**

MeasureThat.net is a platform for comparing JavaScript performance in various scenarios. The benchmark is designed to measure the execution speed of specific code snippets, specifically related to array operations.

**Test Cases**

There are two individual test cases:

1. **test1234567**
	* Benchmark Definition: `const a = [];\r\n\r\nfor(let i = 0; i < 1000000; i++) {\r\n a.push(i);\r\n}\r\n\r\na.splice(0, -1)\r\n`
	* This test case creates an array of 1 million elements using the `push()` method and then removes the first element using the `splice()` method with a negative count.
2. **test23456a**
	* Benchmark Definition: `const a = [];\r\n\r\nfor(let i = 0; i < 1000000; i++) {\r\n a.push(i);\r\n}\r\n\r\n`
	* This test case is similar to the first one, but it omits the final call to `splice(0, -1)`.

**Options Compared**

The benchmark compares two approaches:

1. **Original**: The original code snippet that includes both `push()` and `splice()`.
2. **Optimized**: The modified code snippet that only uses `push()`, without the subsequent `splice()` call.

**Pros and Cons of Each Approach**

1. **Original (with splice())**
	* Pros:
		+ Ensures data is actually removed from the array.
	* Cons:
		+ Additional overhead due to the `splice()` method, which can be slower than `push()`.
2. **Optimized (without splice())**
	* Pros:
		+ Faster execution speed due to reduced overhead of `splice()`.
	* Cons:
		+ May not always remove the first element from the array if it's already empty.

**Library and Purpose**

None of the test cases use a specific library, but they do utilize built-in JavaScript functions like `push()` and `splice()`.

**Special JS Feature or Syntax**

There are no special JavaScript features or syntax used in these test cases. They only rely on standard JavaScript methods and operators.

**Other Alternatives**

If you were to optimize this benchmark further, you could also consider using:

1. **Array.prototype.reduce()**: Instead of using a loop to push elements onto the array, you could use `reduce()` to achieve the same result.
2. **Data structure changes**: Depending on the specific requirements, you might want to explore alternative data structures like linked lists or trees, which could potentially offer better performance.

However, in this particular benchmark, the difference between using `push()` and `splice()` is relatively small, and other optimizations like those mentioned above would likely have a more significant impact.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser/OS: Chrome 119 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
test1234567	246.4 Ops/sec
test23456a	249.1 Ops/sec

Related benchmarks:

3333test (version: 0)

test

Comparing performance of: test1234567 vs test23456a

Created: one year ago by: Guest

Jump to the latest result

test1234567

test23456a

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):