Benchmark: array remove vs _.remove

HTML Preparation code:

<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>

Tests:

array remove
var a = ['hello', 'a', 'bc']; var b = a.filter(item => item !== 'bc')
_.remove
var a = ['hello', 'a', 'bc']; var b = _.remove(a, item => item === 'bc');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array remove
_.remove

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript benchmarks!

Measuring performance is crucial in software development, and MeasuringThat.net provides an excellent platform for testing and comparing different approaches to achieve this goal.

**Benchmark Definition JSON**

The provided benchmark definition represents two test cases:

1. "array remove vs  _.remove": This benchmark compares the performance of the new ES6 spread operator (`...`) with the traditional `concat()` method.
2. The benchmark consists of two individual test cases:
	* "array remove": This test case uses the new ES6 spread operator to create a copy of an array and then removes an element from it using array methods (e.g., `filter()`, `map()`, etc.).
	* "_.remove": This test case uses the Lodash library's `_remove()` function, which is a utility function for removing elements from an array.

**Options Compared**

The two approaches compared in this benchmark are:

1. **New ES6 spread operator (`...`)**: This method creates a shallow copy of an array and then removes elements from it using array methods.
2. **Traditional `concat()` method**: This method concatenates the original array with a new array created by calling `concat()`, effectively creating a copy of the original array.

**Pros and Cons**

1. **New ES6 spread operator (`...`)**:
	* Pros: Efficient, simple to use, and widely supported.
	* Cons: Can be less efficient than other methods for large arrays due to its use of shallow copying.
2. **Traditional `concat()` method**:
	* Pros: Well-established, widely supported, and often used in existing codebases.
	* Cons: Less efficient than the spread operator for large arrays, can lead to performance issues.

**Lodash Library**

In this benchmark, Lodash is used as a library to provide a simple way to remove elements from an array using the `_remove()` function. Lodash is a popular utility library that provides a wide range of functions for tasks such as array manipulation, string manipulation, and more.

**Other Considerations**

When testing performance in JavaScript, several factors come into play:

* **Browser support**: Different browsers may have varying levels of support for specific features or methods.
* **Array size**: Larger arrays can lead to performance issues due to the overhead of creating and manipulating them.
* **Device platform**: Performance can vary significantly between different device platforms (e.g., desktop vs. mobile).

**Alternatives**

If you're interested in exploring alternative approaches, here are a few options:

1. **Using `filter()` or `map()` with a predicate function**: Instead of using the spread operator or concatenation, you could use array methods like `filter()` or `map()` to create a new array with filtered or transformed elements.
2. **Using `slice()` and `splice()`**: Another approach is to use the `slice()` method to create a shallow copy of an array and then modify it using `splice()`.
3. **Using a different data structure**: Depending on the specific problem you're trying to solve, using a different data structure (e.g., an object or a set) might provide better performance.

I hope this explanation helps!

Latest run results:

Run details: (Test run date: 6 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36

Browser/OS: Chrome 65 on Windows

View result in a separate tab

Test name	Executions per second
array remove	24069718.0 Ops/sec
_.remove	1755488.6 Ops/sec

Related benchmarks:

array remove vs _.remove (version: 0)

Compare the new ES6 spread operator with the traditional concat() method

Comparing performance of: array remove vs _.remove

Created: 6 years ago by: Registered User

Jump to the latest result

array remove

_.remove

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 28 days ago):