Benchmark: hula bula - MeasureThat.net

Tests:

1
let arr = [1,2,3,4,5] arr.unshift(0);
2
let arr = [1,2,3,4,5] arr = [0, ...arr];
3
let arr = [1,2,3,4,5] arr = [0, ...arr]; arr.pop();
4
let arr = [1,2,3,4,5] arr = [0, ...arr.slice(0,-1)];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2
3
4

Fastest: N/A

Slowest: N/A

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/127.0.0.0 Safari/537.36

Browser/OS: Chrome 127 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
1	21656480.0 Ops/sec
2	51082044.0 Ops/sec
3	48646692.0 Ops/sec
4	28864098.0 Ops/sec

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 is being tested, compared, and their pros and cons.

**Benchmark Definition**
The benchmark definition represents a JavaScript code snippet that will be executed repeatedly to measure its performance. In this case, there are four benchmarks:

1. `let arr = [1,2,3,4,5]\r\narr.unshift(0);`
2. `let arr = [1,2,3,4,5]\r\narr = [0, ...arr];`
3. `let arr = [1,2,3,4,5]\r\narr = [0, ...arr];\r\narr.pop();`
4. `let arr = [1,2,3,4,5]\r\narr = [0, ...arr.slice(0,-1)];`

These benchmarks test different ways of modifying an array in JavaScript.

**Comparison Options**
The comparison options being tested are:

* `unshift`: Adding an element to the beginning of an array
* `slice`: Creating a shallow copy of a portion of an array
* `push` and `pop`: Modifying an array by adding or removing elements at the end

**Pros and Cons**

1. **`unshift`**: Fastest way to add an element to the beginning of an array, but it can lead to slow performance if done repeatedly.
2. **`slice`**: Creates a new array object containing the requested elements from the original array, which can be slower than `unshift`.
3. **`push` and `pop`**: Modify the original array by adding or removing elements at the end, which can be slower than `unshift`.

In general:

* `unshift` is fastest for adding elements to the beginning of an array.
* `slice` is useful when creating a copy of a portion of an array.
* `push` and `pop` are suitable for modifying an array by adding or removing elements at the end.

**Library Usage**
None of the benchmarks use any libraries, which means they only rely on built-in JavaScript functions.

**Special JS Features/Syntax**
None of the benchmarks use special JavaScript features or syntax that would require additional explanation. They only use standard JavaScript syntax and built-in functions.

**Other Alternatives**

If you were to modify these benchmarks or create new ones, some alternative approaches could be:

* Using `array.prototype.splice()` instead of `unshift` and `push`
* Comparing the performance of different array creation methods, such as using an array literal vs. creating an empty array and then adding elements
* Testing the performance of different data structures, such as arrays vs. linked lists or objects

Keep in mind that these alternatives would require modifying the benchmark definitions and execution logic.

I hope this explanation helps!

Related benchmarks:

hula bula (version: 0)

Comparing performance of: 1 vs 2 vs 3 vs 4

Created: one year ago by: Guest

Jump to the latest result

1

2

3

4

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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