Benchmark: toLocaleLowerCase vs collator

Script Preparation code:

var a = 'FOO BAR';
var b = 'foo bar';

var locale1 = 'en-US'
var locale2 = 'tr'

var collator1 = new Intl.Collator(locale1, { sensitivity: 'accent' });
var collator2 = new Intl.Collator(locale2, { sensitivity: 'accent' });

Tests:

toLocaleLowerCase (en-US)
a.toLocaleLowerCase(locale1) === b.toLocaleLowerCase(locale1)
collator (en-US)
collator1.compare(a, b) === 0
toLocaleLowerCase (tr)
a.toLocaleLowerCase(locale2) === b.toLocaleLowerCase(locale2)
collator (tr)
collator2.compare(a, b) === 0

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
toLocaleLowerCase (en-US)
collator (en-US)
toLocaleLowerCase (tr)
collator (tr)

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what is being tested.

**Benchmark Overview**

The benchmark compares the performance of two approaches: `toLocaleLowerCase` and an internationalization library called `Intl.Collator`. The test cases measure the execution speed of these approaches for both English (en-US) and Turkish (tr) locales.

**Script Preparation Code**

The script preparation code sets up the environment for the benchmark. It defines:

1. Two strings: `a` and `b`, containing the same text but with different casing (`FOO BAR` and `foo bar`).
2. Two locale variables: `locale1` (en-US) and `locale2` (tr).
3. Two collator objects: `collator1` and `collator2`. These objects are created using the `Intl.Collator` API, which is a built-in JavaScript library for internationalization.

**Html Preparation Code**

There is no HTML preparation code provided, which means that the benchmark does not involve any HTML-related operations or interactions.

**Individual Test Cases**

The benchmark consists of four test cases, each measuring the performance of one of the two approaches:

1. `toLocaleLowerCase (en-US)`: Measures the execution speed of the `toLocaleLowerCase` method for English.
2. `collator (en-US)`: Measures the execution speed of the `Intl.Collator` library for English.
3. `toLocaleLowerCase (tr)`: Measures the execution speed of the `toLocaleLowerCase` method for Turkish.
4. `collator (tr)`: Measures the execution speed of the `Intl.Collator` library for Turkish.

**Performance Comparison**

The benchmark measures the number of executions per second (ExecutionsPerSecond) for each test case, which indicates the relative performance of the two approaches.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

1. `toLocaleLowerCase`:
	* Pros: widely supported, simple to use.
	* Cons: may not handle edge cases or cultural nuances accurately.
2. `Intl.Collator`:
	* Pros: more accurate for handling cultural differences, can be used for sorting and comparison tasks beyond just casing.
	* Cons: requires more setup and configuration, may have slower execution speeds due to the additional overhead.

**Intl.Collator Library**

The `Intl.Collator` library is a built-in JavaScript API that provides support for internationalization and localization. It allows developers to work with different languages, scripts, and locales in a consistent and reliable way. The library offers various features beyond just casing, such as:

* Sorting and comparison
* Casing (title case, uppercase, lowercase)
* Unicode normalization

**Other Alternatives**

If you need more advanced internationalization or localization capabilities, consider the following alternatives:

1. ICU (International Components for Unicode): a comprehensive library that provides support for various languages, scripts, and locales.
2. moment.js: a popular date and time manipulation library that also offers internationalization features.

Keep in mind that these alternatives may have different performance characteristics, feature sets, or learning curves compared to the `Intl.Collator` library.

Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser/OS: Chrome 126 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
toLocaleLowerCase (en-US)	6005858.5 Ops/sec
collator (en-US)	6010899.5 Ops/sec
toLocaleLowerCase (tr)	1388352.1 Ops/sec
collator (tr)	4917228.5 Ops/sec

Related benchmarks:

toLocaleLowerCase vs collator (version: 0)

Comparing performance of: toLocaleLowerCase (en-US) vs collator (en-US) vs toLocaleLowerCase (tr) vs collator (tr)

Created: 4 months ago by: Registered User

Jump to the latest result

toLocaleLowerCase (en-US)

collator (en-US)

toLocaleLowerCase (tr)

collator (tr)

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):