Benchmark: lodash vs own capitalize function

HTML Preparation code:

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

Script Preparation code:

function capitalizeFirstLetter(string) {
  return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
}

Tests:

lodash capitalize
const text = "SoMe TeXt To CaPiTaLiZe"; _.capitalize(text)
my own capalize
const text = "SoMe TeXt To CaPiTaLiZe"; capitalizeFirstLetter(text)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash capitalize
my own capalize

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
lodash capitalize	15585363.0 Ops/sec
my own capalize	23586286.0 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 definition and explain what is being tested.

**What is being tested?**

The benchmark is comparing two approaches to capitalize a string:

1. Using the `_.capitalize` function from the Lodash library
2. Implementing a custom `capitalizeFirstLetter` function using JavaScript

**Options compared:**

* The two functions are used to achieve the same goal of capitalizing the first letter of a given string.
* One option is to use an existing, well-maintained, and widely-used library (Lodash) for the task.
* The other option is to implement a custom solution using JavaScript.

**Pros and Cons:**

**Using Lodash (`_.capitalize`):**

Pros:

* Convenience: Using a proven library can save development time and effort.
* Optimized performance: Lodash is likely to be optimized for performance, reducing the likelihood of costly operations like string manipulation.

Cons:

* Dependence on third-party libraries: The benchmark assumes that the user has access to the Lodash library. This might not always be the case, especially in older browsers or environments with limited network connectivity.
* Limited control: By using a library, you have less control over the implementation details and optimization opportunities.

**Implementing custom function (`capitalizeFirstLetter`):**

Pros:

* Control: By implementing your own function, you have full control over the implementation details and optimization opportunities.
* Independence: Your code doesn't depend on any third-party libraries, making it more portable and maintainable.

Cons:

* Development time: Implementing a custom solution requires more development effort and expertise.
* Optimization challenges: Without access to the library's optimizations, your implementation might be slower or less efficient.

**Other considerations:**

* **Browser support:** The benchmark only mentions Chrome 126 on Mac OS X 10.15.7. It's essential to consider browser support and potential issues with older browsers or environments.
* **Device platform and operating system:** The test is run on a desktop device, which might not accurately represent all possible scenarios (e.g., mobile devices).
* **JavaScript features and syntax:** This benchmark doesn't use any special JavaScript features or syntax that would require specific handling.

**Alternatives:**

* If you prefer to implement a custom solution without using Lodash, you can also compare the performance of different approaches, such as:
	+ Using `toUpperCase()` and `slice()` methods
	+ Utilizing regular expressions for string manipulation
	+ Employing other optimization techniques, like memoization or caching

Keep in mind that these alternatives would require additional benchmarking effort to ensure accurate results.

Related benchmarks:

lodash vs own capitalize function (version: 0)

Comparing performance of: lodash capitalize vs my own capalize

Created: 5 years ago by: Guest

Jump to the latest result

lodash capitalize

my own capalize

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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