Benchmark: lodash camelCase vs javascript camelCase long

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>

Script Preparation code:

var str = 'live_dlick_product_caunt_blias'

Tests:

lodash
_.camelCase(str)
javascript
str.split("-").map((item, index) => index ? item.charAt(0).toUpperCase() + item.slice(1).toLowerCase() : item).join("");

Historical Performance Data aggregated from 20 community runs

Desktop Results:

Chrome 20 runs

javascript

12.2M/s

lodash

1.5M/s

Fastest: javascript (8.0x faster)

View exact numbers

✓ javascript: 12,249,688 ops/sec
• lodash: 1,540,570 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash
javascript

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36

Browser/OS: Chrome 138 on Mac OS X 10.15.7

View result in a separate tab

javascript

19.4M/s

lodash

2.1M/s

View exact numbers

Test name	Executions per second
✓ javascript	19,418,080 Ops/sec
lodash	2,133,659 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the explanation of what's being tested on MeasureThat.net.

The benchmark is comparing two approaches for converting camelCase strings to PascalCase: `lodash` (a popular JavaScript utility library) and JavaScript built-in functions.

**Options being compared:**

1. **Lodash (`_.camelCase(str)`)**: This function takes a string as input, splits it into words based on underscores, capitalizes the first letter of each word, and converts the rest to lowercase.
2. **JavaScript built-in functions (`.split(''-').map((item, index) => index ? item.charAt(0).toUpperCase() + item.slice(1).toLowerCase() : item).join('')`)**: This code snippet manually splits the input string into words using underscores as separators, capitalizes the first letter of each word, and converts the rest to lowercase.

**Pros and Cons of each approach:**

Lodash (`_.camelCase(str)`):

Pros:

* Convenient to use, especially for complex transformations
* Well-documented and widely tested
* Can handle edge cases and errors more elegantly

Cons:

* Adds an extra dependency (the `lodash` library) to the project
* May have a performance impact due to the overhead of loading the library
* Less control over the transformation process compared to manual implementation

JavaScript built-in functions:

Pros:

* No additional dependencies or libraries are required
* Can be more efficient, as it avoids the overhead of loading `lodash`
* More control over the transformation process can be exercised

Cons:

* Requires manual implementation and maintenance of error handling
* May not handle edge cases or errors as elegantly as `_.camelCase`

**Library explanation:**

`lodash` is a popular JavaScript utility library that provides a comprehensive set of functions for various tasks, such as string manipulation, array operations, and more. The `.camelCase()` function is just one of the many useful tools provided by `lodash`.

**Special JS feature or syntax:**

There doesn't seem to be any special JavaScript features or syntax used in this benchmark that would require additional explanation.

**Other alternatives:**

For converting camelCase strings to PascalCase, other alternatives could include:

1. Using a dedicated library like `camelcase` (a lightweight, dependency-free alternative to `lodash`)
2. Implementing the transformation manually using only built-in JavaScript functions
3. Using other utility libraries that provide similar string manipulation functionality, such as `underscore` or `string-pixel`

However, these alternatives may not be as widely tested or well-documented as `lodash`, which might affect their performance and reliability in certain scenarios.

I hope this explanation helps software engineers understand the benchmark being performed on MeasureThat.net!

lodash camelCase vs javascript camelCase long (version: 0)

Comparing performance of: `lodash vs javascript`

Created: 5 years ago by: Guest

Go to the latest result

lodash

javascript

Historical Performance Data aggregated from 20 community runs

Desktop Results:

Chrome 20 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

lodash camelCase vs javascript camelCase long (version: 0)

Comparing performance of: lodash vs javascript

Created: 5 years ago by: Guest

Go to the latest result

lodash

javascript

Historical Performance Data aggregated from 20 community runs

Desktop Results:

Chrome 20 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

Related benchmarks

Comparing performance of: `lodash vs javascript`