Benchmark: Compare string refactor case sensitive

Script Preparation code:

var wordList1 = ['apple', 'banana', 'orange', 'kiwi', 'grape', 'APPLE', 'BaNaNa', 'ORAnge', 'kiWI', 'GRapE'];
var wordList2 = ['kiwi', 'orange', 'banana', 'grape', 'apple'];

Tests:

without lowercase function
function stringCompare(lowerA, lowerB) { if (lowerA < lowerB) { return -1; } if (lowerA > lowerB) { return 1; } return 0; } for (let i = 0; i < wordList1.length; i++) { for (let j = 0; j < wordList2.length; j++) { stringCompare(wordList1[i], wordList2[j]); } }
with lowercase function comp
function stringCompare(a, b) { const lowerA = a.toLowerCase(); const lowerB = b.toLowerCase(); if (lowerA < lowerB) { return -1; } if (lowerA > lowerB) { return 1; } return 0; } for (let i = 0; i < wordList1.length; i++) { for (let j = 0; j < wordList2.length; j++) { stringCompare(wordList1[i], wordList2[j]); } }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
without lowercase function
with lowercase function comp

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser/OS: Chrome 121 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
without lowercase function	160847.6 Ops/sec
with lowercase function comp	145892.8 Ops/sec

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

LLMs can make mistakes. Check important info.

**Benchmark Overview**

The provided benchmark is designed to compare the performance of two approaches for comparing strings in JavaScript: one approach uses a case-sensitive comparison, while the other approach converts both strings to lowercase using the `toLowerCase()` method.

**Script Preparation Code**

The script preparation code defines two arrays, `wordList1` and `wordList2`, which contain lists of words with varying cases (e.g., "apple" vs. "Apple"). The script also defines a comparison function, `stringCompare`, which takes two strings as input and returns an integer indicating their relative order.

**Options Compared**

The benchmark compares the performance of two options:

1. **Case-sensitive comparison**: This approach uses the original string values without any modifications.
2. **Case-insensitive comparison with lowercase conversion**: This approach converts both input strings to lowercase using the `toLowerCase()` method before comparing them.

**Pros and Cons**

* **Case-sensitive comparison**:
	+ Pros: Faster performance, as no additional string conversions are required.
	+ Cons: May produce incorrect results due to case differences between strings.
* **Case-insensitive comparison with lowercase conversion**:
	+ Pros: Produces consistent results regardless of case differences between strings.
	+ Cons: Requires an additional step (string conversion) which may introduce performance overhead.

**Library and Purpose**

There is no library mentioned in the benchmark, as it only uses built-in JavaScript features.

**Special JS Feature or Syntax**

The `toLowerCase()` method is used to convert string values to lowercase. This is a standard JavaScript feature that converts a string to its lowest-case equivalent.

**Other Considerations**

* **Performance Impact**: The case-insensitive comparison approach may introduce some performance overhead due to the additional string conversion step.
* **Code Readability and Maintainability**: The use of `toLowerCase()` method may make the code slightly more complex, as it adds an extra layer of abstraction. However, this is a trade-off for the benefits of consistent results.

**Alternatives**

If you need to compare strings in JavaScript, other approaches include:

* Using the `localeCompare()` method (available in modern browsers), which compares strings based on the user's locale settings.
* Implementing custom string comparison logic using regular expressions or other techniques.
* Using a third-party library that provides efficient string comparison capabilities.

Related benchmarks:

Compare string refactor case sensitive (version: 0)

Comparing performance of: without lowercase function vs with lowercase function comp

Created: 2 years ago by: Guest

Jump to the latest result

without lowercase function

with lowercase function comp

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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