Benchmark: Array of objects equivalence (2)

HTML Preparation code:

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

Script Preparation code:

function equivalent(arr1, arr2) {
    if (arr1.length !== arr2.length) {
        return false
    }
    arr1.forEach((elem) => {
        const index = arr2.findIndex((elem2) => elem === elem2)
        if (index === -1) { // not found
            return false
        }
        arr2.splice(index, 1) // remove element
    })
    if (arr2.length > 0) { // if still values in arr2, they are not in arr1
        return false
    }
    return true
}

function _equiv(arr1, arr2) {
    return _.isEqual(_.sortBy(arr1), _.sortBy(arr2))
}

Tests:

custom
const arr1 = [{ KMFGNHeL: 0.2033444758693359, HJMzVLhZ: 373, WeKLrVwh: 'BlgvHn', hutdufbF: 'dfalRd', XqrwJjnR: null }, { xSUdtASV: 'ejVI', pgUHOMNn: true, dhQPzxuj: false, MHUchilq: 719, TWHkCOOT: 0.46691745627158165 }] const arr2 = [{ fZhKYyQT: 379, WtnguXmc: 64, VaodnYbC: 0.7490618732830732, hGhDbXmd: { pQnhfhKR: 0.029586390538915097, oSpBStGM: { dKoUrTyg: 0.8023980228055398, RMSlVEQw: null, KiPTRmIf: 'GIfgX', OOpGOzXD: null, YSTcLKDa: 777 }, eDsjVaPK: null, LrqwYwJs: 0.4117401997875565, AbIoXBix: 'THmFh' }, anQZVYxA: 0.8284963046084715 }] equivalence(arr1, arr2)
lodash
const arr1 = [{ KMFGNHeL: 0.2033444758693359, HJMzVLhZ: 373, WeKLrVwh: 'BlgvHn', hutdufbF: 'dfalRd', XqrwJjnR: null }, { xSUdtASV: 'ejVI', pgUHOMNn: true, dhQPzxuj: false, MHUchilq: 719, TWHkCOOT: 0.46691745627158165 }] const arr2 = [{ fZhKYyQT: 379, WtnguXmc: 64, VaodnYbC: 0.7490618732830732, hGhDbXmd: { pQnhfhKR: 0.029586390538915097, oSpBStGM: { dKoUrTyg: 0.8023980228055398, RMSlVEQw: null, KiPTRmIf: 'GIfgX', OOpGOzXD: null, YSTcLKDa: 777 }, eDsjVaPK: null, LrqwYwJs: 0.4117401997875565, AbIoXBix: 'THmFh' }, anQZVYxA: 0.8284963046084715 }] _equiv(arr1, arr2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
custom
lodash

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

I'll break down the provided JSON data and explain what's being tested, compared options, pros and cons, and other considerations.

**Benchmark Definition**

The benchmark definition is represented by the `Script Preparation Code` and `Html Preparation Code`. In this case:

* The script preparation code defines two functions: `equivalent(arr1, arr2)` and `_equiv(arr1, arr2)`.
* The `_equiv(arr1, arr2)` function is wrapped around another library function, `_isEqual(_.sortBy(arr1), _.sortBy(arr2))`, which comes from the Lodash JavaScript library.
* The purpose of these functions is to test whether two arrays (`arr1` and `arr2`) are equivalent.

**Options Compared**

The options being compared are:

1. **Manual implementation**: The `equivalent(arr1, arr2)` function, which implements a custom algorithm to compare the two arrays.
2. **Lodash library**: The `_equiv(arr1, arr2)` function, which uses the Lodash library's `_isEqual` function to compare the sorted arrays.

**Pros and Cons**

* **Manual implementation (equivalent)**:
	+ Pros: Customizable, lightweight, and potentially faster since it doesn't depend on a third-party library.
	+ Cons: Error-prone, less readable, and may not be as efficient as a well-optimized library function.
* **Lodash library (_equiv)**:
	+ Pros: Well-tested, optimized, and easy to read.
	+ Cons: Additional dependency, potentially slower than a custom implementation.

**Other Considerations**

* The benchmark tests the performance of both options on identical data sets.
* The use of Lodash's `_isEqual` function simplifies the comparison process but introduces an additional dependency.

**Library Explanation (Lodash)**

The Lodash library is a popular JavaScript utility library that provides a wide range of functions for various tasks, such as:

* String manipulation
* Array manipulation
* Object manipulation
* Functional programming helpers
* And more!

In this benchmark, the `_.isEqual` function from Lodash is used to compare two arrays. It returns a boolean value indicating whether the two arrays are equal.

**Special JS Feature/Syntax**

There doesn't appear to be any special JavaScript features or syntax being tested in this benchmark.

**Alternative Approaches**

Other alternatives for implementing array equivalence could include:

* Using a different library, such as `lodash-es` (a more modern version of Lodash) or another library like `fast-json-stamp`.
* Implementing a custom algorithm using a different approach, such as using a hash function to generate a unique fingerprint for each array.
* Using a more specialized data structure, such as a trie or a suffix tree, to efficiently compare arrays.

Keep in mind that these alternatives would likely have their own pros and cons, which would need to be evaluated on a case-by-case basis.

Related benchmarks:

Array of objects equivalence (2) (version: 0)

Comparing performance of: custom vs lodash

Created: 5 years ago by: Guest

Jump to the latest result

custom

lodash

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):