Benchmark: Uppercase first letter

HTML Preparation code:

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

Script Preparation code:

var text = "banana"

Tests:

Native
text.charAt(0).toUpperCase() + text.slice(1)
Lodash
_.upperFirst(text)
Native replace
text.replace(/./, c => c.toUpperCase())

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash
Native replace

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0

Browser/OS: Chrome 134 on Windows

View result in a separate tab

Test name	Executions per second
Native	77767616.0 Ops/sec
Lodash	24583410.0 Ops/sec
Native replace	4179928.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark definition and test cases to understand what is being tested.

**Benchmark Definition**

The benchmark definition provides two scripts for uppercasing the first letter of a given text: `text.charAt(0).toUpperCase() + text.slice(1)` (Native) and `_.upperFirst(text)` (Lodash).

**Options Compared**

Two approaches are compared:

1. **Native**: This approach uses native JavaScript methods (`charAt` and `slice`) to upper-case the first letter of the text.
2. **Lodash**: This approach uses a library function from Lodash, a popular utility library for JavaScript (`_.upperFirst(text)`).

**Pros and Cons**

* **Native**:
	+ Pros: No external dependencies, likely to be faster since it doesn't require loading an additional library.
	+ Cons: May have better performance due to being implemented in native code, but also may have more overhead due to the need for explicit method calls.
* **Lodash**:
	+ Pros: Easier to read and maintain, especially if you're familiar with Lodash functions. Also, it allows for a single function call that can handle various text manipulation tasks.
	+ Cons: Requires loading an external library, which may introduce overhead due to network latency.

**Library**

In this benchmark, the `lodash` library is used. Lodash is a popular utility library that provides many useful functions for tasks such as string manipulation, array operations, and more. The `_.upperFirst(text)` function takes a string input and returns the uppercased first character of the string.

**Special JS Feature/Syntax**

There are no special JavaScript features or syntax used in this benchmark. All tests use standard JavaScript methods and library functions from Lodash.

**Other Alternatives**

If you're interested in exploring alternative approaches, here are some options:

* **Use a different utility library**: Instead of using Lodash, you could use another library like Underscore.js or Moment.js.
* **Implement the uppercasing logic yourself**: You could write your own custom implementation for uppercasing the first letter of a string using native JavaScript methods.

Keep in mind that when using alternative approaches, you may need to consider factors such as performance, code readability, and library dependencies.

Related benchmarks:

Uppercase first letter (version: 0)

Comparing performance of: Native vs Lodash vs Native replace

Created: 4 years ago by: Guest

Jump to the latest result

Native

Lodash

Native replace

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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