Benchmark: Тест эквалс

HTML Preparation code:

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

Script Preparation code:

var MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  bigArray: Array.from({length: 4000}, () => ({[Math.floor(Math.random() * 40000)]: Math.floor(Math.random() * 40000)})),
  foo(a) {
    console.log('foo' + a)
  }
};
var MyObject1 = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  },
  bigArray: Array.from({length: 4000}, () => ({[Math.floor(Math.random() * 40000)]: Math.floor(Math.random() * 40000)})),
  foo(a) {
    console.log('foo' + a)
  }
};

Tests:

1
_.isEqual(MyObject, MyObject1);
2
JSON.stringify(MyObject) === JSON.stringify(MyObject1);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2

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 definition and explain what's being tested, compared, and the pros and cons of different approaches.

**Benchmark Definition JSON**

The benchmark definition represents two test cases:

1. `_.isEqual(MyObject, MyObject1);` (Test Case 1)
2. `JSON.stringify(MyObject) === JSON.stringify(MyObject1);` (Test Case 2)

**What's being tested?**

Both test cases are designed to measure the performance of a specific JavaScript function or method.

**Test Case 1: _.isEqual(MyObject, MyObject1)**

This test case uses the Lodash library (`lodash@4.17.4`) and compares two objects, `MyObject` and `MyObject1`, for equality using the `_isEqual` function.

* **What's being compared?**: The values of both objects.
* **Library:** Lodash, a popular JavaScript utility library that provides various functions for tasks like string manipulation, array operations, and more. In this case, the `_isEqual` function is used to compare two objects for equality.

**Test Case 2: JSON.stringify(MyObject) === JSON.stringify(MyObject1)**

This test case uses built-in JavaScript methods (`JSON.stringify`) to convert both objects to strings and compares their contents.

* **What's being compared?**: The resulting string representations of both objects.
* **Library:** None, as this is a built-in JavaScript method.

**Options compared**

In Test Case 1, two approaches are compared:

A) Lodash's `_isEqual` function
B) Built-in JavaScript object comparison (not explicitly implemented, but implied)

In Test Case 2, only one approach is compared:

A) Built-in JavaScript `JSON.stringify` method

**Pros and Cons of different approaches**

**Test Case 1: _.isEqual(MyObject, MyObject1)**

* **Lodash's `_isEqual` function**:
	+ Pros: Efficiently compares objects based on their internal representation (e.g., object references, property order).
	+ Cons: May not be as efficient for very large or complex objects.
* **Built-in JavaScript object comparison**: (not explicitly implemented)
	+ Pros: Simple and widely supported.
	+ Cons: May not perform well for large or complex objects, and might be slower than `_isEqual` due to the overhead of comparing property names and values.

**Test Case 2: JSON.stringify(MyObject) === JSON.stringify(MyObject1)**

* **Built-in JavaScript `JSON.stringify` method**:
	+ Pros: Simple, widely supported, and efficient for small objects.
	+ Cons: May not perform well for large or complex objects due to the overhead of serializing property names and values.

**Other considerations**

* The use of a library (Lodash) in Test Case 1 might introduce additional overhead compared to built-in JavaScript methods used in Test Case 2.
* The test cases' focus on object equality using `_.isEqual` or `JSON.stringify` may not accurately represent real-world scenarios, where more complex data structures and comparison logic are often required.

**Alternatives**

Other alternatives for comparing objects might include:

* Using a library like `JSON5` or `jsonschema` to compare JSON strings.
* Implementing a custom object comparison function that considers specific property types (e.g., numbers, booleans, dates).
* Using a data structure like a trie or a binary search tree to efficiently store and retrieve object properties.

Keep in mind that these alternatives might not be as widely supported or efficient as the Lodash `_isEqual` function or built-in JavaScript `JSON.stringify` method.

Related benchmarks:

Тест эквалс (version: 0)

Comparing performance of: 1 vs 2

Created: 4 years ago by: Guest

Jump to the latest result

1

2

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):