Benchmark: Test isEqual vs JSON.stringify2

HTML Preparation code:

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

Script Preparation code:

window.foo = [true,"https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js","integration4",{"betatest":0.01,"integration4":1}];
window.bar = [true,"https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js","integration4",{"betatest":0.02,"integration4":1}];

Tests:

Test1
_.isEqual(window.foo, window.bar)
Test2
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Test1
Test2

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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Let's break down the provided JSON and explain what's being tested on MeasureThat.net.

**Benchmark Definition**

The benchmark is designed to compare two approaches: using the `isEqual` function from the Lodash library (specifically, version 4.17.4) versus comparing objects using the `===` operator with `JSON.stringify`.

**Options Compared**

Two options are compared:

1. **Lodash's isEqual**: This approach uses the `isEqual` function from Lodash to compare two objects for equality. It checks if both objects have the same structure, values, and types.
2. **Raw JSON Comparison**: This approach uses the `===` operator with `JSON.stringify` to compare two objects as strings. This method converts the objects into a string representation and then compares these strings.

**Pros and Cons**

**Lodash's isEqual**

Pros:

* More robust comparison, considering object structure and values
* Can handle complex data structures (e.g., nested objects, arrays)
* Might be faster for large datasets due to optimized implementation

Cons:

* Requires Lodash library to be loaded and available in the scope
* May introduce additional overhead due to function call and parameter passing

**Raw JSON Comparison**

Pros:

* Fast and lightweight, as it only involves string comparisons
* No dependencies on external libraries

Cons:

* Less robust comparison, as it only checks for structural equality (i.e., same property names and values)
* Might produce false positives or negatives for certain data structures

**Library: Lodash's isEqual**

Lodash's `isEqual` function is a utility function that compares two objects for equality. It recursively traverses both objects, comparing their properties and values. If all properties match, it returns `true`. This approach provides a more robust comparison than the raw JSON comparison, as it considers object structure and values.

**Other Considerations**

* **Browser Support**: Both approaches should work in modern browsers that support Lodash and JavaScript features.
* **Data Types**: The benchmark assumes that both objects have similar data types (e.g., numbers, strings, booleans). If the data types differ, the `isEqual` function might handle them differently.

**Alternatives**

If you want to explore alternative approaches, consider:

1. Using other comparison libraries or functions, such as `JSON.stringify()` with a custom comparator.
2. Implementing your own equality check function.
3. Comparing object properties individually using `in` operator and value comparisons (e.g., `a.value === b.value`).

Keep in mind that each alternative has its pros and cons, and some might not be supported by all browsers or JavaScript versions.

I hope this explanation helps you understand the benchmark and make informed decisions about your own projects!

Related benchmarks:

Test isEqual vs JSON.stringify2 (version: 0)

Test on isEqual performance

Comparing performance of: Test1 vs Test2

Created: 4 years ago by: Registered User

Jump to the latest result

Test1

Test2

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):