Benchmark: lodash uniq vs set string custom

HTML Preparation code:


<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Tests:

Set
var l = new Set(["a", "a","b","c", "englihs", "prey", "english", "b"]); return l;
Array
var l = ["a", "a","b","c", "englihs", "prey", "english", "b"]; return _.uniq(l);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Set
Array

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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I'll break down the provided benchmark and explain what's being tested, compared options, pros and cons of those approaches, library usage, special JavaScript features, and other considerations.

**Benchmark Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The provided benchmark compares two approaches for removing duplicates from an array: using the native `Set` data structure and using the popular utility library Lodash's `uniq` function.

**Test Cases**

There are two test cases:

1. **Set**: This test case uses a `Set` object to remove duplicates from an array containing multiple identical elements.
2. **Array**: This test case uses Lodash's `uniq` function to remove duplicates from the same array as in the previous test case.

**Library Usage**

The `uniq` function is part of the Lodash library, which provides a set of useful functions for working with arrays and objects. The `uniq` function takes an array as input and returns a new array containing only unique elements, preserving the original order of equal elements.

In the context of this benchmark, the `Set` data structure is used to remove duplicates from the array because it automatically removes duplicates by storing each element as a key in a hash table. The `uniq` function from Lodash achieves the same result but uses an algorithmic approach to identify and remove duplicate elements.

**Special JavaScript Features**

There are no special JavaScript features or syntaxes being tested in this benchmark, apart from using the `Set` data structure which is a built-in feature of modern browsers.

**Options Compared**

The two options being compared are:

1. **Native Set Data Structure**: Using the native `Set` data structure to remove duplicates from an array.
2. **Lodash's uniq Function**: Using Lodash's `uniq` function to remove duplicates from the same array.

**Pros and Cons of Each Approach**

Here are some pros and cons of each approach:

1. **Native Set Data Structure**:
	* Pros: Fast, efficient, and widely supported by modern browsers.
	* Cons: May not work as expected in older browsers that do not support `Set`.
2. **Lodash's uniq Function**:
	* Pros: More comprehensive and flexible, can handle edge cases and complex scenarios.
	* Cons: Slower than the native `Set` data structure due to its algorithmic nature.

**Other Considerations**

* The benchmark measures the execution speed of each approach, which is an important factor for applications that require fast performance.
* The test case uses a specific array with multiple identical elements to simulate real-world scenarios where duplicates need to be removed.
* The use of Lodash's `uniq` function may not be necessary in all cases, and developers can opt for the native `Set` data structure instead.

**Alternatives**

Other alternatives for removing duplicates from an array include:

1. **Using a custom implementation**: Developers can write their own algorithm to remove duplicates from an array.
2. **Using other utility libraries**: Other libraries like jQuery or Underscore.js may provide similar functionality as Lodash's `uniq` function.

In conclusion, the benchmark compares two approaches for removing duplicates from an array: using the native `Set` data structure and using Lodash's `uniq` function. The pros and cons of each approach are discussed, along with other considerations such as performance, compatibility, and custom implementation options.

Related benchmarks:

lodash uniq vs set string custom (version: 0)

Comparing performance of: Set vs Array

Created: 3 years ago by: Guest

Jump to the latest result

Set

Array

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):