Benchmark: Splice Vs Filter Vs Lodash Remove Vs Lodash Filter

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js'></script>

Tests:

Splice
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((arrVal,arrIDX) => ({id: Math.random() < 0.5 ? arrIDX: null})); for (var i = arr.length - 1; i >= 0; i -= 1) { if (!arr[i].id) arr.splice(i, 1); }
Filter
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((arrVal,arrIDX) => ({id: Math.random() < 0.5 ? arrIDX: null})); arr2 = arr.filter(elem => elem.id);
Lodash Remove
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((arrVal,arrIDX) => ({id: Math.random() < 0.5 ? arrIDX: null})); _.remove(arr, elem => !elem.id);
Lodash Filter
var arr = new Array(15000); arr.fill({ id: 0 }); arr = arr.map((arrVal,arrIDX) => ({id: Math.random() < 0.5 ? arrIDX: null})); arr2 = _.filter(arr, elem => elem.id);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Splice
Filter
Lodash Remove
Lodash Filter

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

**Benchmark Overview**

The benchmark measures the performance of different JavaScript methods to remove objects with a specified falsy element from an array: `splice`, `filter`, Lodash's `remove` method, and Lodash's `filter` method. The goal is to compare the execution times of these methods on large arrays.

**Test Cases**

Each test case represents a specific implementation:

1. **Splice**: Uses the built-in `splice` method to remove objects from the array.
	* Pros: Simple and widely supported, as it's part of the ECMAScript standard.
	* Cons: Can be slower due to its side-effect nature (modifying the original array).
2. **Filter**: Uses the `filter` method to create a new array with filtered elements.
	* Pros: Efficient and modern, as it's a built-in method in most JavaScript implementations.
	* Cons: May not be suitable for large arrays or performance-critical applications due to its overhead.
3. **Lodash Remove**: Utilizes Lodash's `remove` method, which is designed for removing elements from an array.
	* Pros: Optimized for performance and widely used in the developer community.
	* Cons: Requires including Lodash as a dependency, adding extra weight to the application.
4. **Lodash Filter**: Uses Lodash's `filter` method, similar to the built-in `filter` method but optimized for larger arrays.
	* Pros: Provides a more efficient and modern alternative to the built-in `filter` method.
	* Cons: Requires including Lodash as a dependency.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides various helper functions, including filtering and removal methods. Its implementation is optimized for performance and provides a convenient way to perform common tasks in a concise manner.

**Special JS Feature or Syntax: None mentioned**

There are no special JavaScript features or syntax used in the benchmark.

**Other Alternatives**

If you're interested in exploring alternative approaches:

* **Array.prototype.reduce()**: Can be used to remove elements from an array by accumulating the indices of the filtered elements.
* **Array.prototype.forEach()**: Can be used with a callback function to iterate over the array and filter out unwanted elements.
* **Native Array methods**: Some JavaScript implementations may provide additional native array methods for filtering or removing elements, such as `Array.prototype.map()` and `Array.prototype.every()`.

Keep in mind that these alternatives might not be as efficient or widely supported as the methods used in the benchmark.

Related benchmarks:

Splice Vs Filter Vs Lodash Remove Vs Lodash Filter (version: 2)

Remove objects with specified falsy element from array

Comparing performance of: Splice vs Filter vs Lodash Remove vs Lodash Filter

Created: 2 years ago by: Registered User

Jump to the latest result

Splice

Filter

Lodash Remove

Lodash Filter

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):