Benchmark: BasiaBasiaBasiaBasiaBasiaBasia

HTML Preparation code:

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

Script Preparation code:

window.foo = ['cat', 'dog', 'bird'];
window.bar = ['cat', 'dog', 'bird'];

Tests:

_.isEqual
window.foo.every((value, index) => value === window.bar[index])
JSON.stringify
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
_.isEqual
JSON.stringify

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down what is tested in the provided JSON.

**Benchmark Definition**

The benchmark definition consists of two test cases:

1. `window.foo.every((value, index) => value === window.bar[index])`
	* This test case uses the `every` method on the `foo` array and checks if every element in the array matches its corresponding element in the `bar` array.
	* The callback function `(value, index) => value === window.bar[index]` takes two arguments: the current element (`value`) and its index. It returns a boolean indicating whether the current element is equal to the corresponding element in `window.bar`.
2. `JSON.stringify(window.foo) === JSON.stringify(window.bar)`
	* This test case compares the stringified representations of the `foo` and `bar` arrays using `JSON.stringify`.
	* The resulting strings are compared using the `===` operator, which checks for equality between two values.

**Options Compared**

Two options are compared:

1. **Array Equality**: The first test case (`window.foo.every((value, index) => value === window.bar[index])`) compares the elements of the `foo` and `bar` arrays at each index using a simple equality check.
2. **JSON Stringification**: The second test case (`JSON.stringify(window.foo) === JSON.stringify(window.bar)`)) converts both arrays to strings using `JSON.stringify` and then compares the resulting strings.

**Pros and Cons**

1. **Array Equality**
	* Pros:
		+ Simple and straightforward comparison
		+ Can be faster for small arrays or simple comparisons
	* Cons:
		+ May not work correctly for arrays with non-numeric values or objects
		+ Can be slow for large arrays due to the number of comparisons
2. **JSON Stringification**
	* Pros:
		+ Works correctly for arrays with any type of elements
		+ Can be faster for large arrays since it's a single string comparison
	* Cons:
		+ Requires converting arrays to strings, which can be slower than element-by-element comparison
		+ May not work correctly if the array contains non-JSON serializable values (e.g., objects with circular references)

**Library and Special JS Features**

The test case uses the `lodash` library, specifically the `_isEqual` function. This function is a more comprehensive implementation of array equality that handles various edge cases and optimizations.

There are no special JavaScript features or syntax used in this benchmark.

**Other Alternatives**

Other alternatives for comparing arrays could include:

1. Using the `every` method with a custom callback function
2. Using a library like `deep-equal` or `assert-equal` for more comprehensive array equality checks
3. Using a framework-specific implementation, such as React's `isEqual` function

These alternatives may offer different performance characteristics, handling of edge cases, or convenience features compared to the simple equality check and JSON stringification used in this benchmark.

Related benchmarks:

BasiaBasiaBasiaBasiaBasiaBasia (version: 0)

Test on isEqual performance

Comparing performance of: _.isEqual vs JSON.stringify

Created: 4 years ago by: Guest

Jump to the latest result

_.isEqual

JSON.stringify

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):