Benchmark: Lodash vs Native 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)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Native
Lodash

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 6 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0.1 Safari/605.1.15

Browser/OS: Safari 26 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Native	63408324.0 Ops/sec
Lodash	49194104.0 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 benchmark and explain what's being tested.

**What is being tested?**

The benchmark compares the performance of two approaches:

1. **Native JavaScript**: This approach uses the built-in `toUpperCase()` method to uppercase the first letter of the text, followed by slicing the rest of the string (`text.slice(1)`).
2. **Lodash's `upperFirst` function**: This is a utility function from the Lodash library that takes a string as input and returns the string with the first character uppercased.

**Options being compared**

The benchmark compares the performance of these two approaches on the same text ("banana").

**Pros and Cons:**

* **Native JavaScript**:
	+ Pros: Typically faster, as it doesn't involve an external library call.
	+ Cons: May not be optimized for performance in older browsers or specific use cases.
* **Lodash's `upperFirst` function**:
	+ Pros: Easier to read and maintain, especially for developers familiar with Lodash.
	+ Cons: Slower due to the overhead of an external library call.

**Other considerations**

The benchmark uses Chrome 126 on a Macintosh (Intel) platform with Safari 537.36 as the rendering engine. This ensures that any performance differences are specific to JavaScript execution, rather than being influenced by browser-specific optimizations or differences in rendering engines.

**Library usage**

Lodash is used in this benchmark as a third-party library for its `upperFirst` function. Lodash provides a wide range of utility functions for tasks like string manipulation, array manipulation, and more. In this case, the `upperFirst` function is specifically designed to uppercase the first letter of a string.

**Special JavaScript feature or syntax**

There are no specific features or syntaxes being tested in this benchmark that require special handling or explanation.

**Other alternatives**

If you were to create an alternative benchmark, you might consider using:

* **V8 JavaScript Engine's native methods**: The V8 engine is the one used by Google Chrome and other browsers. Creating a benchmark for V8's native methods could provide more accurate results, as it would measure performance in a browser-specific context.
* **Node.js or other JavaScript runtime environments**: Running benchmarks on different Node.js versions or other JavaScript runtimes could help identify platform-specific performance differences.
* **Other JavaScript libraries or frameworks**: Using alternative libraries like jQuery, React, or Angular to implement the same functionality and compare their performance.

Keep in mind that each of these alternatives would require modifications to the benchmark script and setup.

Related benchmarks:

Lodash vs Native Uppercase first letter (version: 0)

Comparing performance of: Native vs Lodash

Created: 7 years ago by: Guest

Jump to the latest result

Native

Lodash

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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