Benchmark: Lodash.isEqual vs JSON.stringfy comparision performance (false result)

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

window.foo = [
            {
                "seizoGyoshaCd": "52082",
                "seizoGyoshaKanji": "日鉄建材株式会社",
                "deleteFlg": "0",
                "torokDate": 1589986800000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            },
            {
                "seizoGyoshaCd": "88888",
                "seizoGyoshaKanji": "東京製鐵株式会社",
                "deleteFlg": "0",
                "torokDate": 1589986800000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            },
            {
                "seizoGyoshaCd": "NIKEN",
                "seizoGyoshaKanji": "株式会社ﾆｯｹﾝ鋼業",
                "deleteFlg": "0",
                "torokDate": 1589986800000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            }
        ];
window.bar = [
            {
                "seizoGyoshaCd": "52082",
                "seizoGyoshaKanji": "日鉄建材株式会社",
                "deleteFlg": "0",
                "torokDate": 1589986800000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            },
            {
                "seizoGyoshaCd": "88888",
                "seizoGyoshaKanji": "東京製鐵株式会社",
                "deleteFlg": "0",
                "torokDate": 1589986800000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            },
            {
                "seizoGyoshaCd": "NIKEN",
                "seizoGyoshaKanji": "株式会社ﾆｯｹﾝ鋼業",
                "deleteFlg": "0",
                "torokDate": 158998680000,
                "lastUpdShainId": null,
                "lastUpdDate": null
            }
        ];

Tests:

Lodash.isEqual
_.isEqual(window.foo, window.bar)
JSON.stringfy
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash.isEqual
JSON.stringfy

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash.isEqual	705646.3 Ops/sec
JSON.stringfy	390380.6 Ops/sec

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided JSON represents a JavaScript benchmarking test case on the MeasureThat.net website. The test compares the performance of two approaches: using Lodash's `isEqual` function and comparing arrays using `JSON.stringify`.

**Options Compared**

Two options are compared:

1. **Lodash.isEqual**: This function is used to compare the equality of two objects.
2. **JSON.stringfy comparison**: This approach involves serializing both arrays to strings using `JSON.stringify` and then comparing the resulting strings.

**Pros and Cons of Each Approach**

### Lodash.isEqual

Pros:

* Efficient use of memory, as it only iterates over the properties of one object.
* Can handle large objects with deep structures efficiently.

Cons:

* May be slower for small objects due to the overhead of function calls.
* Requires Lodash library to be included in the test environment.

### JSON.stringfy Comparison

Pros:

* Simple and straightforward approach that requires no additional libraries.
* Fast execution time, as it only involves a single string comparison.

Cons:

* Inefficient use of memory, as two separate strings are created for each array.
* May not handle large objects or deep structures efficiently due to the overhead of serialization.

**Special Considerations**

The test case uses Lodash library, which is included in the `Html Preparation Code`. The library provides a convenient way to perform common JavaScript tasks, such as equality checks.

The test also tests a special JS feature/syntax: **JSON.stringify**, which is used to serialize arrays into strings. This syntax can be useful for debugging and logging purposes, but may not always produce the desired results due to issues like stringification bugs or array ordering changes.

**Other Alternatives**

Alternative approaches to compare arrays could include:

* Using `Array.prototype.every()` method, which checks if all elements in one array satisfy a condition (in this case, equality with another array).
* Implementing a custom equality check using loops and conditional statements.
* Using a third-party library like `immer` or `fast-ify`, which provide efficient data structures and algorithms for common use cases.

However, the provided options are likely to be among the most efficient and straightforward approaches for this specific benchmark.

Related benchmarks:

Lodash.isEqual vs JSON.stringfy comparision performance (false result) (version: 0)

Comparing performance of: Lodash.isEqual vs JSON.stringfy

Created: one year ago by: Registered User

Jump to the latest result

Lodash.isEqual

JSON.stringfy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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