Benchmark: Lodash.isFinite vs Object.isFinite

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.js"></script>

Script Preparation code:

var value = 123456;

Tests:

Lodash isFinite
_.isFinite(value);
Native isFinite
Number.isFinite(value);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash isFinite
Native isFinite

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36

Browser/OS: Chrome 139 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash isFinite	162021568.0 Ops/sec
Native isFinite	176937552.0 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated 8 months ago):

LLMs can make mistakes. Check important info.

The benchmark defined here compares the performance of two functions that determine whether a value is a finite number: `_.isFinite` from the Lodash library and `Number.isFinite`, the native method provided by JavaScript.

### Comparison of Options:

1. **Lodash's `_.isFinite(value)`**
   - **Library Description**: Lodash is a JavaScript utility library that provides functions for common programming tasks, including manipulating arrays, numbers, objects, strings, etc. The `_.isFinite` function checks if the value is a finite number. It first converts the value to a number and then checks if the result is finite.
   - **Pros**:
     - Uniform API across various Lodash functions, making it a consistent choice for developers already leveraging Lodash.
     - Handles edge cases gracefully by converting values to numbers.
   - **Cons**:
     - Introduces an external dependency, which adds to the overall bundle size of the application, potentially impacting performance.
     - May be slower than native methods because it involves type coercion and additional processing overhead that can be avoided using the native implementation.

2. **Native `Number.isFinite(value)`**
   - **Library Description**: Introduced in ECMAScript 2015 (ES6), `Number.isFinite` checks whether a given value is a finite number without converting the value to a number type. This means it returns false for non-numeric values and positive/negative infinity.
   - **Pros**:
     - Performance advantage, as shown in the benchmarking results, which demonstrate higher execution speed with more executions per second.
     - No additional dependencies, which keeps the application lightweight and reduces bundle size.
   - **Cons**:
     - It does not handle non-numeric inputs gracefully; values like `'123'` or `true` will return false without type coercion.

### Benchmark Results:
From the benchmark results, we see that `Number.isFinite` performed significantly better, achieving around **176 million executions per second**, compared to Lodash's `_.isFinite`, which resulted in about **162 million executions per second**. This indicates that for high-performance scenarios, especially in tight loops or repeated function calls, the native method should be preferred.

### Other Considerations:
Choosing between these two approaches depends on the specific needs of the project:
- If your application already uses Lodash extensively, you might prefer using `_.isFinite` for consistency across your codebase.
- If performance is a critical factor, especially in performance-sensitive applications, opting for the native `Number.isFinite` is advisable due to its efficiency and reduced overhead.

### Alternatives:
There are a few alternative approaches, such as:
- Using a simple combination of `isNaN` and type checking (e.g., `typeof value === 'number' && !isNaN(value)`), although this approach may result in more verbose code.
- Custom implementations that may combine characteristics of both libraries without introducing external dependencies.

In summary, while Lodash offers some useful utilities, the native `Number.isFinite` method is typically a more efficient choice for checking if a value is finite, especially when performance is a concern.

Related benchmarks:

Lodash.isFinite vs Object.isFinite (version: 1)

Measuring approaches performance

Comparing performance of: Lodash isFinite vs Native isFinite

Created: 8 months ago by: Guest

Jump to the latest result

Lodash isFinite

Native isFinite

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated 8 months ago):