Benchmark: Compare lodash isEmpty and Set.size

HTML Preparation code:

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

Script Preparation code:

// empty array
window.foo1 = [];

// array of strings
window.foo2 = new Set(['a', 'b', 'c', 'd', 'e']);

// array of objects
window.foo3 = new Set([{ a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }, { a: 1, b: 2, c: { a: 1, b: 2, c: { a: 1, b: 2 } } }]);

Tests:

isEmpty empty array
_.isEmpty(window.foo1);
size empty array
window.foo1.size === 0;
isEmpty array of strings
_.isEmpty(window.foo2);
size array of strings
window.foo2.size === 0;
isEmpty array of objects
_.isEmpty(window.foo3);
size array of objects
window.foo3.size === 0;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isEmpty empty array
size empty array
isEmpty array of strings
size array of strings
isEmpty array of objects
size array of objects

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and its components.

**Benchmark Definition:**
The benchmark is designed to compare the performance of two different approaches:

1. Using Lodash's `isEmpty` function to check if an array or object is empty.
2. Checking the size of an array or object using the `size` property (available on Sets) directly.

**Options Compared:**

* Lodash's `isEmpty` function for arrays and objects
* Checking the size of an array or object using the `size` property

**Pros and Cons:**

* **Lodash's `isEmpty` function:**
	+ Pros:
		- More readable and maintainable code, as it clearly expresses the intent of checking if an array or object is empty.
		- Less chance of human error, as it's a standardized function in Lodash.
	+ Cons:
		- Additional dependency on Lodash, which may not be available in all environments.
		- Potential performance overhead due to the function call and potential garbage collection.
* **Checking size using `size` property:**
	+ Pros:
		- No additional dependencies or performance overhead.
		- Directly checks the desired property without any unnecessary function calls.
	+ Cons:
		- May not be as readable or maintainable, especially for developers not familiar with Sets.
		- More error-prone, as it relies on the `size` property being available and correctly implemented.

**Library:**
Lodash is a popular JavaScript library that provides a set of useful functions for tasks like array manipulation, string manipulation, and more. In this case, Lodash's `isEmpty` function is used to check if an array or object is empty.

**Special JS feature/syntax:**
None mentioned in the benchmark definition. However, it's worth noting that Sets (introduced in ECMAScript 2015) provide a convenient way to work with collections of unique values, making this comparison relevant for modern JavaScript development.

**Other Alternatives:**

* Other array and object manipulation libraries or functions could be used as alternatives to Lodash's `isEmpty` function.
* Built-in JavaScript methods like `length` or `size` (if available) could be used instead of the `size` property on Sets.

In summary, this benchmark compares two approaches for checking if an array or object is empty: using Lodash's `isEmpty` function and checking the size of an array or object using the `size` property. The choice between these approaches depends on factors like readability, maintainability, performance, and dependency management.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser/OS: Chrome 103 on Windows

View result in a separate tab

Test name	Executions per second
isEmpty empty array	1854681.2 Ops/sec
size empty array	4395391.0 Ops/sec
isEmpty array of strings	642128.2 Ops/sec
size array of strings	3706222.5 Ops/sec
isEmpty array of objects	681564.2 Ops/sec
size array of objects	4582146.0 Ops/sec

Related benchmarks:

Compare lodash isEmpty and Set.size (version: 0)

Comparing performance of: isEmpty empty array vs size empty array vs isEmpty array of strings vs size array of strings vs isEmpty array of objects vs size array of objects

Created: 2 years ago by: Guest

Jump to the latest result

isEmpty empty array

size empty array

isEmpty array of strings

size array of strings

isEmpty array of objects

size array of objects

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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