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

Latest run results:

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

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**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!

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: 8 years ago by: Registered User

Jump to the latest result

array remove

_.remove

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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