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_.isFunction
(version: 0)
Comparing performance of:
_.isFunction vs Placeholder
Created:
4 years ago
by:
Guest
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HTML Preparation code:
https://cdn.jsdelivr.net/combine/npm/lodash@4.17.21,npm/lodash@4.17.21/isFunction.min.js
Tests:
_.isFunction
function x() { console.log('xyz'); }; console.log(_.isFunction(x));
Placeholder
console.log(true);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
_.isFunction
Placeholder
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** MeasureThat.net is a platform that allows users to create and run JavaScript microbenchmarks to compare different approaches, libraries, and devices. The benchmark provided measures the performance of two test cases: one with Lodash's `isFunction` function and another with a simple placeholder test. **Script Preparation Code** The script preparation code is set to combine the latest versions of Lodash (4.17.21) from multiple npm repositories using CDN. This ensures that the benchmark uses the latest version of Lodash, which may impact its performance characteristics. **Options Compared** In this benchmark, two options are compared: 1. **Lodash's `isFunction` function**: This is a utility function that checks if a given value is a function. 2. **Simple placeholder test**: This test simply logs "true" to the console. The pros and cons of these approaches are as follows: * Lodash's `isFunction` function: + Pros: Provides a clear and concise way to check if a value is a function, which can be useful in various scenarios. + Cons: May introduce additional overhead due to the library's presence, which could impact performance. * Simple placeholder test: + Pros: Minimalist approach that doesn't rely on any external libraries, making it potentially faster and more lightweight. + Cons: May not provide meaningful results if used for testing function-related scenarios. **Library: Lodash** Lodash is a popular JavaScript utility library that provides various functions for tasks such as array manipulation, string processing, and more. The `isFunction` function is one of its many utility functions that checks if a given value is a function. **Special JS Feature or Syntax** There are no special JavaScript features or syntax used in this benchmark. However, it's worth noting that MeasureThat.net often includes benchmarks for specific libraries or frameworks, such as React or Node.js, which may introduce additional complexity and overhead. **Other Alternatives** If you were to create a similar benchmark, consider the following alternatives: * Use a different utility library, such as `typeof` or `Function.prototype.toString()`, to check if a value is a function. * Implement a custom function that checks for functionality without relying on external libraries. * Consider adding more test cases with varying complexity and characteristics to gain a better understanding of the performance differences. Keep in mind that this benchmark's specific use case and requirements may limit the applicability of these alternatives.
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