Benchmark: lodash remove vs native filter

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js"></script>

Script Preparation code:

var max = 10000000; // 10,000,000 (10 Million)

var arr = [];
for (var i = 0; i <= max; i++) { arr.push(i); }

Tests:

lodash
_.remove(arr, item => item === 890047);
native
arr = arr.filter(item => item !== 890047);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
native

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0

Browser/OS: Chrome 139 on Windows

View result in a separate tab

Test name	Executions per second
lodash	3.8 Ops/sec
native	5.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'd be happy to explain the benchmark and its results.

**Benchmark Overview**

The benchmark measures the performance of two approaches to remove a specific element from an array: using the Lodash library's `remove` function versus native JavaScript's `filter` method.

**Options Compared**

Two options are compared:

1. **Lodash (`_.remove`)**: This approach uses the Lodash library, which provides a utility function for removing elements from arrays.
2. **Native JavaScript (`arr.filter`)**: This approach uses native JavaScript's built-in `filter` method to remove elements from an array.

**Pros and Cons of Each Approach**

* **Lodash (`_.remove`)**:
	+ Pros:
		- Easier to read and maintain, as it's a single function call.
		- May be more efficient due to optimized implementation by the Lodash library.
	+ Cons:
		- Requires importing the Lodash library, which may add overhead.
		- May have additional dependencies, such as polyfills or transpilation steps.
* **Native JavaScript (`arr.filter`)**:
	+ Pros:
		- No additional dependencies or imports required.
		- Native implementation is typically faster and more lightweight.
	+ Cons:
		- Can be less readable due to the need to specify a callback function.
		- May require additional setup, such as defining the callback function.

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for working with arrays, objects, and more. In this benchmark, the `remove` function from Lodash is used to remove elements from an array based on a predicate (a function that returns a boolean value). The `remove` function takes two arguments: the array to modify and the element to remove.

**Test Case: Removing a Specific Element**

In both test cases, the goal is to remove the specific element with index 890047 from the array. However, the implementation differs:

* In the Lodash approach (`_.remove(arr, item => item === 890047)`), the `item` variable represents the element to be removed, and the predicate function simply checks if this element matches the target value (in this case, 890047). The `_.remove` function takes care of removing the correct element from the array.
* In the native JavaScript approach (`arr.filter(item => item !== 890047)`), an explicit filter callback function is used to remove elements that do not match the condition (`item !== 890047`). This approach requires manual iteration and comparison, which may be slower than the optimized implementation provided by Lodash.

**Special JS Feature/ Syntax**

There are no special JavaScript features or syntaxes being tested in this benchmark. The focus is on comparing two basic approaches to array manipulation: using a utility library versus native JavaScript methods.

**Other Alternatives**

If you'd like to explore alternative approaches, here are some options:

* Using `arr.splice()` instead of `_.remove()`: This would involve removing the element at the specified index from the array and then shifting all subsequent elements down.
* Using a different utility library (e.g., Underscore.js or Moment.js): These libraries may provide similar functions for working with arrays, but their implementation might differ.
* Implementing your own custom function: You could write a simple loop-based implementation to remove the element from the array, which would likely be slower than the optimized native JavaScript approach.

Related benchmarks:

lodash remove vs native filter (version: 0)

Comparing performance of: lodash vs native

Created: 5 years ago by: Guest

Jump to the latest result

lodash

native

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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