Benchmark: localeCompare compare

Script Preparation code:

var array = ['banana', 'pear', 'apple', 'mango'];

Tests:

Normal sort
array.sort((a, b) => a > b ? 1 : -1);
localeCompare sort
array.sort((a, b) => a.localeCompare(b));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Normal sort
localeCompare sort

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/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
Normal sort	9220318.0 Ops/sec
localeCompare sort	9088536.0 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 JSON data and explain what's being tested in each benchmark.

**Benchmark Definition**

The first section, "Benchmark Definition," defines a JavaScript microbenchmark that compares two approaches to sorting an array of strings: a normal sort using the greater-than and less-than operators (`a > b ? 1 : -1`) versus a localeCompare sort using the `localeCompare` method.

**Options Compared**

Two options are compared:

1. **Normal Sort**: This approach uses the traditional comparison operators (>` and `<) to compare elements in the array.
2. **LocaleCompare Sort**: This approach uses the `localeCompare` method, which compares strings based on their Unicode code points, culture, and language.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Normal Sort**:
	+ Pros: Simple, easy to implement, and widely supported.
	+ Cons: Can be slower for large datasets due to the overhead of comparing elements using arithmetic operators.
* **LocaleCompare Sort**:
	+ Pros: Faster for large datasets, handles non-ASCII characters and special cases (e.g., Unicode normalization), and is more culturally sensitive.
	+ Cons: Requires a modern JavaScript engine that supports `localeCompare`, and its behavior can vary across different browsers and locales.

**Library/Functionality Used**

The `localeCompare` method uses the following library or functionality:

* The International Organization for Standardization (ISO) 20636 standard, which provides a set of rules for comparing strings based on their Unicode code points.
* The ICU (International Components for Unicode) library, which implements these rules and provides additional features like Unicode normalization.

**Special JS Feature/Syntax**

The `localeCompare` method uses the following special feature:

* **Cultural Sensitivity**: By default, `localeCompare` takes into account the culture and language of the strings being compared. This allows for more accurate results when sorting dates, numbers, or other types of data that rely on cultural-specific formatting.

**Other Alternatives**

If you want to explore alternative approaches to sorting arrays in JavaScript, consider the following options:

* Using a library like Lodash's `sortBy` function, which uses a combination of sort algorithms and heuristics to optimize performance.
* Implementing a custom sorting algorithm using bitwise operations or other techniques to avoid the overhead of comparing elements using arithmetic operators.
* Using WebAssembly (WASM) to write a highly optimized sorting algorithm in a language like Rust or C++.

Keep in mind that the choice of sorting algorithm depends on your specific use case, performance requirements, and personal preference.

Related benchmarks:

localeCompare compare (version: 0)

Comparing performance of: Normal sort vs localeCompare sort

Created: one year ago by: Guest

Jump to the latest result

Normal sort

localeCompare sort

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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