Benchmark: Lodash Capitalize vs Vanilla Js

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Tests:

Lodash
const status = "ACCEPTED_ON_AUDIT"; for ( let i = 0; i < 100000; i++) { _.capitalize(status) }
Vanilla Js
const status = "ACCEPTED_ON_AUDIT"; for ( let i = 0; i < 100000; i++) { status[0].toUpperCase() + status.slice(1).toLowerCase(); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash
Vanilla Js

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 Edg/120.0.0.0

Browser/OS: Chrome 120 on Windows

View result in a separate tab

Test name	Executions per second
Lodash	113.3 Ops/sec
Vanilla Js	386.0 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

Let's break down what's being tested in this benchmark.

The benchmark is comparing the performance of two approaches to capitalize a string: one using the Lodash library and the other using vanilla JavaScript.

**Lodash Library**

Lodash (a popular JavaScript utility library) provides a function called `capitalize` that capitalizes the first character of a string and converts the rest to lowercase. In this benchmark, the `capitalize` function is used to capitalize the string `"ACCEPTED_ON_AUDIT"`.

**Vanilla JavaScript Approach**

The vanilla JavaScript approach uses two techniques to achieve the same result:

1. `toUpperCase()` method: This method converts all characters in a string to uppercase. By calling it only on the first character of the string (`status[0]`), we effectively capitalize the first character.
2. `toLowerCase()` method: This method converts all characters in a string to lowercase. By calling it on the rest of the string (`status.slice(1)`) after uppercasing the first character, we achieve the desired capitalization.

**Pros and Cons**

Here's a brief analysis of each approach:

* **Lodash Approach**
	+ Pros: Convenient and concise way to capitalize strings.
	+ Cons: Requires an additional library dependency (Lodash).
* **Vanilla JavaScript Approaches**
	+ Pros:
		- No additional library dependencies required.
		- Uses built-in methods, which are generally faster and more efficient.
	+ Cons:
		- More verbose code compared to the Lodash approach.

**Other Considerations**

The benchmark also tests for different browser versions (Chrome 120) and platforms (Desktop Windows), which indicates that the results may vary across different environments.

**Special JavaScript Features/Syntax**

None are mentioned in this specific benchmark. However, it's worth noting that some other features or syntax might be used in more complex benchmark cases, such as:

* Async/await
* Promises
* Closures
* Object methods (e.g., `forEach`, `reduce`)

**Alternatives**

Other alternative approaches to capitalizing strings could include using a string constructor (`new String("ACCEPTED_ON_AUDIT").toUpperCase()`) or utilizing Unicode code points to achieve the desired result. However, these alternatives are less common and might not be as efficient as using built-in methods like `toUpperCase()`.

In summary, this benchmark tests two approaches to capitalizing strings: one using the Lodash library and the other using vanilla JavaScript techniques. While the Lodash approach is convenient, it requires an additional dependency, whereas the vanilla JavaScript approaches are more verbose but use built-in methods that might be faster.

Related benchmarks:

Lodash Capitalize vs Vanilla Js (version: 0)

Comparing performance of: Lodash vs Vanilla Js

Created: 3 years ago by: Guest

Jump to the latest result

Lodash

Vanilla Js

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):