Benchmark: Lodash isEqual test

HTML Preparation code:

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

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

Script Preparation code:

// 1 level deep
window.foo1 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar1 = { a: 1, b: 3, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };

// 2 levels deep
window.foo2 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar2 = { a: 1, b: 2, c: { a: 1, b: 3, c: { a: 1, b: 2 } } };

// 3 levels deep
window.foo3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };
window.bar3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 4 } } };

​x
 
// 1 level deepwindow.foo1 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };window.bar1 = { a: 1, b: 3, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };​// 2 levels deepwindow.foo2 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };window.bar2 = { a: 1, b: 2, c: { a: 1, b: 3, c: { a: 1, b: 2 } } };​// 3 levels deepwindow.foo3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } };window.bar3 = { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 4 } } };

Tests:

_.isEqual Level 1
_.isEqual(window.foo1, window.bar1)
_.isEqual(window.foo1, window.bar1)
JSON.stringify Level 1
JSON.stringify(window.foo1) === JSON.stringify(window.bar1);
JSON.stringify(window.foo1) === JSON.stringify(window.bar1);
_.isEqual Level 2
_.isEqual(window.foo2, window.bar2)
_.isEqual(window.foo2, window.bar2)
JSON.stringify Level 2
JSON.stringify(window.foo2) === JSON.stringify(window.bar2);
JSON.stringify(window.foo2) === JSON.stringify(window.bar2);
_.isEqual Level 3
_.isEqual(window.foo3, window.bar3)
_.isEqual(window.foo3, window.bar3)
JSON.stringify Level 3
JSON.stringify(window.foo3) === JSON.stringify(window.bar3);
JSON.stringify(window.foo3) === JSON.stringify(window.bar3);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

Memory measurements supported only in Chrome.
For precise memory measurements Chrome must be launched with --enable-precise-memory-info flag.
More information: Monitoring JavaScript Memory

Test case name	Result
_.isEqual Level 1
JSON.stringify Level 1
_.isEqual Level 2
JSON.stringify Level 2
_.isEqual Level 3
JSON.stringify Level 3

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 6 days ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 Edg/135.0.0.0

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
_.isEqual Level 1	2654560.2 Ops/sec
JSON.stringify Level 1	2738258.0 Ops/sec
_.isEqual Level 2	1324693.9 Ops/sec
JSON.stringify Level 2	2757419.5 Ops/sec
_.isEqual Level 3	889800.6 Ops/sec
JSON.stringify Level 3	2725385.5 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):

Measuring the performance of JavaScript microbenchmarks is crucial for developers to optimize their code and ensure it runs efficiently.

Benchmark Definition: The benchmark is designed to test the performance of Lodash's isEqual function on objects with nested structures.

Options Compared:

Lodash's isEqual: The primary method being tested, which compares two objects for equality.
JSON.stringify comparison: A simple string comparison between JSON representations of the same object.

Pros and Cons of Each Approach:

Lodash's isEqual:
- Pros: Handles complex nested structures with ease, including cyclic references.
- Cons: Can be slower due to its recursive nature and handling of deep objects.
JSON.stringify comparison:
- Pros: Fast and simple, as it only involves creating a string representation of the object.
- Cons: May not accurately represent the object's structure or nested relationships.

Library: Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, object transformation, and more. In this benchmark, Lodash's isEqual function is being tested for its performance on objects with complex nested structures.

Special JS Features/Syntax: None mentioned in the provided code.

Benchmark Preparation Code:

The script preparation code creates three objects (foo1, bar1, foo2, bar2, and foo3, bar3) with increasingly nested structures. These objects are then used to test the performance of Lodash's isEqual function using both the direct comparison method and JSON.stringify.

Other Alternatives:

JSONschema: Another popular library for validating and comparing JSON data.
DeepEqual: A simple, fast, and reliable way to compare deeply nested objects.

LLMs can make mistakes. Check important info.

Measuring the performance of JavaScript microbenchmarks is crucial for developers to optimize their code and ensure it runs efficiently.

**Benchmark Definition:**
The benchmark is designed to test the performance of Lodash's `isEqual` function on objects with nested structures.

**Options Compared:**

1. **Lodash's isEqual**: The primary method being tested, which compares two objects for equality.
2. **JSON.stringify comparison**: A simple string comparison between JSON representations of the same object.

**Pros and Cons of Each Approach:**

*   Lodash's `isEqual`:
    *   Pros: Handles complex nested structures with ease, including cyclic references.
    *   Cons: Can be slower due to its recursive nature and handling of deep objects.
*   JSON.stringify comparison:
    *   Pros: Fast and simple, as it only involves creating a string representation of the object.
    *   Cons: May not accurately represent the object's structure or nested relationships.

**Library:**
Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, object transformation, and more. In this benchmark, Lodash's `isEqual` function is being tested for its performance on objects with complex nested structures.

**Special JS Features/Syntax:**
None mentioned in the provided code.

**Benchmark Preparation Code:**

The script preparation code creates three objects (`foo1`, `bar1`, `foo2`, `bar2`, and `foo3`, `bar3`) with increasingly nested structures. These objects are then used to test the performance of Lodash's `isEqual` function using both the direct comparison method and JSON.stringify.

**Other Alternatives:**

*   **JSONschema**: Another popular library for validating and comparing JSON data.
*   **DeepEqual**: A simple, fast, and reliable way to compare deeply nested objects.

Related benchmarks:

Lodash isEqual test (version: 0)

Test on isEqual performance

Comparing performance of: _.isEqual Level 1 vs JSON.stringify Level 1 vs _.isEqual Level 2 vs JSON.stringify Level 2 vs _.isEqual Level 3 vs JSON.stringify Level 3

Created: 7 years ago by: Registered User

Jump to the latest result

_.isEqual Level 1

JSON.stringify Level 1

_.isEqual Level 2

JSON.stringify Level 2

_.isEqual Level 3

JSON.stringify Level 3

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 6 months ago):