Benchmark: Lodash isNumber vs native Number.isInteger

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Tests:

isInteger Lodash
['a', '2', 5].find(val => _.isInteger(val));
Number.isInteger
['a', '2', 5].find(val => Number.isInteger(val));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
isInteger Lodash
Number.isInteger

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**Benchmark Overview**

The provided benchmark compares two approaches to check if a number is an integer: `Number.isInteger` (native) and `_.isInteger` from Lodash. The benchmark consists of two individual test cases:

1. `isInteger Lodash`: This test case uses the Lodash library to check if a value is an integer.
2. `Number.isInteger`: This test case uses the native JavaScript function `Number.isInteger` to check if a value is an integer.

**Options Compared**

The benchmark compares two options:

1. **Lodash**: The Lodash library provides a utility function `_isInteger` that checks if a value is an integer.
2. **Native JavaScript**: The `Number.isInteger` function is a native JavaScript method that performs the same check as Lodash's `_isInteger`.

**Pros and Cons of Each Approach**

1. **Lodash (`_.isInteger`)**:
	* Pros:
		+ Easy to use and understand, especially for developers familiar with Lodash.
		+ Provides a more comprehensive set of functions beyond just checking for integer values.
	* Cons:
		+ Requires an additional library download and setup.
		+ May introduce overhead due to the library's functionality.
2. **Native JavaScript (`Number.isInteger`)**:
	* Pros:
		+ No additional library or setup required.
		+ Fast and lightweight, with minimal overhead.
	* Cons:
		+ Requires a deeper understanding of native JavaScript methods.
		+ May not provide as comprehensive set of functions as Lodash.

**Library: Lodash**

Lodash is a popular utility library for JavaScript that provides a collection of high-order functions to transform data. The `_isInteger` function is one of the many utility functions available in Lodash, which checks if a value is an integer. Other common use cases include `_.trim`, `_.map`, and `_.reduce`.

**Special JS Feature/ Syntax: None**

There are no special JavaScript features or syntax mentioned in this benchmark.

**Other Alternatives**

If you're interested in exploring alternative approaches to checking if a number is an integer, consider the following options:

1. **RegExp**: You can use a regular expression to check if a string represents an integer value.
2. **Custom implementation**: You can create your own custom function to check if a value is an integer by parsing the value as a decimal and comparing it to its integer representation.

These alternatives may have different performance characteristics or ease of use compared to Lodash and native JavaScript methods.

Keep in mind that this benchmark focuses on comparing two specific approaches, so exploring alternative options might not be directly relevant. However, understanding the trade-offs between these approaches can help you make informed decisions when writing your own JavaScript code.

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser/OS: Chrome 128 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
isInteger Lodash	6222526.5 Ops/sec
Number.isInteger	7039159.0 Ops/sec

Related benchmarks:

Lodash isNumber vs native Number.isInteger (version: 0)

Comparing performance of: isInteger Lodash vs Number.isInteger

Created: one year ago by: Guest

Jump to the latest result

isInteger Lodash

Number.isInteger

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):