Benchmark: weqwqewwqe - MeasureThat.net

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Script Preparation code:


var a = [{"key":3, "b": 2},{"key":44, "d": 2},{"key":1, "f": 2}];

Tests:

filter
a.filter(modifier => modifier.key === 1)
slice
a.splice(a.findIndex((elem) => { return elem.key === 1 } ), 1);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
filter
slice

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and explain what's being tested, compared options, pros and cons of each approach, and other considerations.

**Benchmark Overview**

The provided benchmark is created on MeasureThat.net, which allows users to create and run JavaScript microbenchmarks. The benchmark consists of two test cases: `filter` and `slice`. Both tests are designed to measure the performance of a specific JavaScript method or function.

**Script Preparation Code**

The script preparation code provides the initial setup for both tests:
```javascript
var a = [{ "key": 3, "b": 2 }, { "key": 44, "d": 2 }, { "key": 1, "f": 2 }];
```
This code defines an array `a` with three objects containing different key-value pairs.

**Html Preparation Code**

The HTML preparation code includes two external JavaScript libraries:

```javascript
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
```
These libraries are used by the test cases: Lodash and jQuery.

**Test Cases**

There are two individual test cases:

### Test Case 1: `filter`

```javascript
Benchmark Definition: a.filter(modifier => modifier.key === 1)
Test Name: filter
```
This test case uses the `filter` method to create a new array containing only objects with a key equal to 1. The benchmark measures the performance of this operation.

### Test Case 2: `slice`

```javascript
Benchmark Definition: a.splice(a.findIndex((elem) => { return elem.key === 1 }), 1);
Test Name: slice
```
This test case uses the `splice` method to remove the first element from array `a` that matches the condition `elem.key === 1`. The benchmark measures the performance of this operation.

**Library and Syntax Considerations**

* **Lodash**: Lodash is a popular utility library for JavaScript. In this benchmark, it's used in conjunction with jQuery. Lodash provides functional programming helpers, such as the `filter` function.
* **jQuery**: jQuery is a lightweight JavaScript library that simplifies DOM manipulation and event handling. In this benchmark, it's included to provide access to its filtering functionality.

**Options Comparison**

The two test cases use different approaches to achieve their goals:

1.  **Filter Test Case (`filter`)**

*   **Approach:** Use the `filter` method to create a new array containing only objects with a specific key value.
    *   **Pros:**
        *   Simple and straightforward implementation.
        *   Easy to understand and maintain.
        *   Works well for small datasets or arrays.
    *   **Cons:** Creates a new array, which can be inefficient for large datasets. Can lead to additional memory allocation.

2.  **Slice Test Case (`slice`)**

*   **Approach:** Use the `splice` method to remove an element from the original array.
    *   **Pros:**
        *   Only modifies the existing array, reducing memory allocation.
        *   Efficient for large datasets.
    *   **Cons:** Modifies the original array, which might be undesirable in some cases. Can lead to unexpected side effects.

**Alternatives**

If you wanted to create similar benchmarks without using MeasureThat.net, you could consider using:

1.  **Benchmarking Frameworks**: Libraries like Benchmark.js, JSPerf, or Speedometer allow you to write custom benchmark scripts.
2.  **Browser DevTools**: Many modern browsers provide built-in tools for measuring JavaScript performance, such as the Chrome DevTools.
3.  **Third-Party Tools**: Other tools, like Node.js's `bench` module or libraries like Benchmark++, can be used for microbenchmarking.

When choosing an alternative, consider factors such as ease of use, flexibility, and compatibility with your target environment.

In conclusion, MeasureThat.net provides a straightforward way to create and run JavaScript microbenchmarks. By understanding the approach taken in these tests, you can better evaluate performance differences between various methods and choose the most efficient solution for your specific use case.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Browser/OS: Chrome 74 on Mac OS X 10.14.4

View result in a separate tab

Test name	Executions per second
filter	7156305.5 Ops/sec
slice	4571704.0 Ops/sec

Related benchmarks:

weqwqewwqe (version: 0)

qwewqewe

Comparing performance of: filter vs slice

Created: 5 years ago by: Guest

Jump to the latest result

filter

slice

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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