Benchmark: lodash vs native tolower on nestedobject

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js'></script>

Script Preparation code:

var testString = 'lkjskljdlskjdlsdjslkdjsljdlksjd'
var testObject = {nestedString: 'lkjskljdlskjdlsdjslkdjsljdlksjd', deepNest:{string: 'lkjskljdlskjdlsdjslkdjsljdlksjd'}}

Tests:

lodash toLower
_.toLower(testString)
native toLowerCase
testString.toLowerCase()
lodash toLower on nested
_.toLower(testObject.nestedString)
native toLowerCase on nested
testObject?.nestedString
lodash toLower on deep nested
_.toLower(testObject.deepNest.string)
native toLowerCase on deep nested
testObject?.deepNest?.string

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
lodash toLower
native toLowerCase
lodash toLower on nested
native toLowerCase on nested
lodash toLower on deep nested
native toLowerCase on deep nested

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/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Windows

View result in a separate tab

Test name	Executions per second
lodash toLower	194008768.0 Ops/sec
native toLowerCase	205828912.0 Ops/sec
lodash toLower on nested	184024928.0 Ops/sec
native toLowerCase on nested	215120512.0 Ops/sec
lodash toLower on deep nested	190565616.0 Ops/sec
native toLowerCase on deep nested	187887968.0 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 and explain what's being tested.

**Benchmark Overview**

The benchmark measures the performance of two approaches:

1. Using the `toLowerCase()` method directly on JavaScript strings (native approach).
2. Using the `_toLower()` function from the Lodash library on JavaScript strings.

**Options Compared**

The benchmark compares three variants of each approach:

* Native toLowerCase:
	+ Directly calling `toLowerCase()` on a string (`testString` or `nestedString` within an object)
	+ Using optional chaining (`?.`) with `toLowerCase()` on nested objects (`testObject.nestedString` or `testObject.deepNest.string`)
* Lodash toLower:
	+ Calling `_toLower()` on a string (`testString`)

**Pros and Cons of Each Approach**

1. **Native toLowerCase:**
	* Pros:
		+ Faster execution, as it's a built-in method
		+ More familiar interface for developers
	* Cons:
		+ May not be as flexible or robust as Lodash's approach (e.g., no support for nested objects)
2. **Lodash toLower:**
	* Pros:
		+ More flexible and robust, supporting nested objects and complex string manipulation
		+ Can provide additional functionality beyond simple case folding (e.g., normalization, escaping)
	* Cons:
		+ Requires an external library (Lodash), which may introduce performance overhead or dependencies
		+ May require more memory allocation due to the extra function call

**Library: Lodash**

Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks such as array manipulation, object transformation, and string manipulation. In this benchmark, Lodash's `_toLower()` function is used to perform case folding on strings.

**Special JS Features/Syntax**

* Optional Chaining (`?.`): This feature allows you to access nested properties in an object using a safer syntax, avoiding errors that would occur if the property does not exist.
	+ Example: `testObject?.nestedString` (equivalent to `testObject.nestedString || null` or `testObject && testObject.nestedString`)

**Other Alternatives**

If you prefer not to use Lodash or want to explore alternative solutions, here are a few options:

* **Vanilla String Methods**: Instead of using `_toLower()` from Lodash, you could write your own implementation of case folding functions (e.g., `casefold()`) that leverage the built-in `toLowerCase()` and `toUpperCase()` methods.
* **Other Libraries or Frameworks**: Depending on your project's requirements, you might consider using libraries like Underscore.js or Moment.js, which provide similar functionality to Lodash. Alternatively, some frameworks like React or Angular offer built-in string manipulation utilities.

Keep in mind that the performance differences between these approaches will depend on your specific use case and execution environment.

Related benchmarks:

lodash vs native tolower on nestedobject (version: 0)

Comparing performance of: lodash toLower vs native toLowerCase vs lodash toLower on nested vs native toLowerCase on nested vs lodash toLower on deep nested vs native toLowerCase on deep nested

Created: 4 years ago by: Registered User

Jump to the latest result

lodash toLower

native toLowerCase

lodash toLower on nested

native toLowerCase on nested

lodash toLower on deep nested

native toLowerCase on deep nested

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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