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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:
3 years ago
by:
Guest
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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>
Run tests (6)
Previous results
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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
Latest run results:
No previous run results
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
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.
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