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Compare lodash isEmpty and length comparison on arrays and Object keys
(version: 0)
Comparing performance of:
isEmpty empty array vs length empty array vs isEmpty array of strings vs length array of strings vs isEmpty on object vs length of object
Created:
3 years ago
by:
Guest
Jump to the latest result
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 = ['a', 'b', 'c', 'd', 'e']; // array of objects window.foo3 = { a: 1, b: 2, c: 3, d: 4, e: 5};
Tests:
isEmpty empty array
_.isEmpty(window.foo1);
length empty array
window.foo1.length === 0;
isEmpty array of strings
_.isEmpty(window.foo2);
length array of strings
window.foo2.length === 0;
isEmpty on object
_.isEmpty(window.foo3);
length of object
Object.keys(window.foo3).length === 0;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (6)
Previous results
Fork
Test case name
Result
isEmpty empty array
length empty array
isEmpty array of strings
length array of strings
isEmpty on object
length of object
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 dive into the world of JavaScript microbenchmarks! **Benchmark Overview** The provided benchmark is designed to compare the performance of two approaches: using the `_.isEmpty` method from Lodash and checking the length of an array or object directly. **Lodash Library** Lodash is a popular JavaScript library that provides a collection of reusable functions for various tasks, such as array manipulation, object transformation, and more. The `_` prefix refers to the root namespace of the library. In this benchmark, Lodash's `_.isEmpty` function is used to check if an array or object is empty. This function takes a single argument and returns a boolean value indicating whether the input is empty. **Options Compared** The two options being compared are: 1. Using Lodash's `_.isEmpty` method: * Pros: concise and expressive code, provides a standardized way of checking emptiness. * Cons: adds external dependency (Lodash), may introduce overhead due to function call. 2. Checking length directly: * Pros: no external dependency, simple and lightweight implementation. * Cons: requires more boilerplate code, less readable for complex cases. **Performance Comparison** The benchmark results show the execution frequency per second (ExecutionsPerSecond) for each test case. The top performer is the "length empty array" test with approximately 1127 executions per second on Chrome 104. **Device and OS Breakdown** The latest benchmark result shows the device platform, operating system, and browser type for each test case. This suggests that: * Desktop environments are more consistent than mobile or tablet devices. * Linux is a better platform than other operating systems (e.g., Windows). * Chrome 104 is the top-performing browser, followed by others in the Safari and Firefox families. **Other Considerations** When writing JavaScript benchmarks, it's essential to consider factors such as: * Code readability and maintainability * Test case coverage and diversity * External dependencies and their potential impact on performance * Device and OS variations In this benchmark, using Lodash's `_.isEmpty` method provides a concise and expressive way of checking emptiness, but introduces an external dependency. Checking length directly is more lightweight but requires more boilerplate code. **Alternatives** If you're interested in exploring alternative approaches, here are some options: 1. Using the built-in `Array.prototype.length` property: This approach is similar to checking length directly, but relies on native JavaScript support. 2. Implementing a custom emptiness check function using bitwise operations or other optimization techniques. 3. Utilizing libraries like FastJSON or JSON for fast string parsing and manipulation. Keep in mind that each alternative has its pros and cons, and may not provide the same level of performance, readability, or maintainability as the original benchmark.
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Lodash.isEqual vs Array.join() Equality Comparison for Shallow Array of Strings.
Compare lodash isEmpty and length comparison on string arrays
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