Benchmark: Lodash remove vs filter native larger array

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 = [];

for (var i = 0; i < 1000; i++) {
  testArray.push({
  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 JSON data and explain what's being tested.

**Benchmark Definition**

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

1. **Lodash `remove`**: Using the Lodash library, which provides a `remove` function that takes a callback function as an argument.
2. **Native filter**: Using the native JavaScript `filter()` method without any additional libraries.

**Options being compared**

The benchmark is comparing two options:

* Lodash's `remove` function
* Native JavaScript's `filter()` method

**Pros and Cons of each approach**

1. **Lodash `remove`**:
	* Pros:
		+ More concise code (e.g., `_.remove(testArray, function(o) { ... })`)
		+ Easier to read and maintain
	* Cons:
		+ Requires an additional library (Lodash)
		+ May introduce unnecessary dependencies
2. **Native filter**:
	* Pros:
		+ No additional libraries required
		+ Can be more efficient, as it doesn't create a new array (it modifies the original one)
	* Cons:
		+ More verbose code (e.g., `testArray.filter(o => {\r\n  \tif(o.id != 2) {\r\n      o.description = 'test';\r\n     return o; \r\n    }\r\n});`)
		+ May be less readable for complex filtering logic

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides various functions for tasks like array manipulation, object manipulation, and more. The `remove` function in this benchmark is used to remove elements from an array based on a callback function.

**Special JS feature or syntax: None mentioned**

There's no special JavaScript feature or syntax being tested in this benchmark.

**Other alternatives**

If you wanted to compare other approaches, you could consider:

* Using other libraries for array manipulation, such as `Array.prototype.filter()` with a closure
* Implementing your own custom `remove` function from scratch (not recommended, as it would likely be slower and more error-prone)
* Comparing the performance of different browsers or JavaScript engines by running multiple benchmark tests

I hope this explanation helps! Let me know if you have any further questions.

Related benchmarks:

Lodash remove vs filter native larger array (version: 0)

Lodash remove vs filter native with a larger array to trigger more GC work

Comparing performance of: Native filter vs Lodash remove

Created: 3 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):