Benchmark: Lodash rmove vs filter native

HTML Preparation code:

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

Script Preparation code:

var testCopy = null;
var testArray = [{
  id: 1,
  description: 'Random description.',
  testDate: new Date(),
  testBoolean: true,
  testObject: {
    testString: 'test string',
    testNumber: 12345
  },
  testArray: [{
    myName: 'test name',
    myNumber: 123245
  }]
},{
  id: 2,
  description: 'Random description.',
  testNumber: 123456789,
  testBoolean: true,
  testObject: {
    testString: 'test string',
    testNumber: 12345
  },
  testArray: [{
    myName: 'test name',
    myNumber: 123245
  }]
}];

Tests:

Native filter
testCopy = testArray.filter(o => { if(o.id != 2) { o.description = 'test'; return o; } });
Lodash remove
_.remove(testArray, function(o) { if(o.id != 2) { o.description = 'test'; return o; } });

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native filter
Lodash remove

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested, compared, and their pros and cons.

**Benchmark Overview**

The benchmark is comparing two approaches to remove specific objects from an array:

1. Native JavaScript `filter()` method
2. Lodash `remove()` function

**Native JavaScript filter() Method**

This approach uses the `filter()` method on the `testArray` variable, which returns a new array with all elements that pass the test implemented by the provided function. In this case, the function checks if the `id` property of each object is not equal to 2 and assigns a default description if it's not.

**Lodash remove() Function**

This approach uses Lodash's `remove()` function on the `testArray` variable, which removes all elements from the array that pass the test implemented by the provided function. In this case, the function checks if the `id` property of each object is not equal to 2 and assigns a default description if it's not.

**Comparison**

The comparison is straightforward: both approaches achieve the same result, but they differ in how they implement the filtering logic.

**Pros and Cons**

**Native JavaScript filter() Method**

Pros:

* Typically faster since it doesn't require external library dependencies
* Can be more efficient for large datasets due to its ability to take advantage of browser optimizations

Cons:

* Requires manually implementing the filtering logic, which can be error-prone and less readable
* May not work consistently across all browsers or versions

**Lodash remove() Function**

Pros:

* Easier to read and maintain due to its more explicit and concise implementation
* Less prone to errors since it's implemented by a well-tested library
* Works consistently across all supported browsers and versions

Cons:

* Typically slower due to the overhead of loading an external library
* May not be optimized for large datasets like native `filter()`

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for common tasks, such as array manipulation, object transformation, and more. The `remove()` function is part of Lodash's collection of array utilities.

**Special JS Feature or Syntax: None**

There are no special features or syntax used in this benchmark beyond what's standard in JavaScript.

**Other Alternatives**

If you need to remove objects from an array without using a library like Lodash, you can also use other approaches, such as:

* ForEach loop with an if statement
* Array.prototype.every() and then slice()
* Using the spread operator and filtering

Keep in mind that these alternatives may have performance implications or be less readable than using Lodash's `remove()` function.

Related benchmarks:

Lodash rmove vs filter native (version: 0)

Lodash rmove vs filter native

Comparing performance of: Native filter vs Lodash remove

Created: 5 years ago by: Guest

Jump to the latest result

Native filter

Lodash 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):