Benchmark: aa vs bb - MeasureThat.net

Tests:

A
function isPalindrome(word) { word = word.toString().toLowerCase().replace(/[\W_]/g, ''); const array_copy = word.split(''); const reversed_array = array_copy.reverse(); return word === reversed_array.join(''); } for(i=0; i<10; i++){ isPalindrome('anA'); }
B
function isPalindrome(word) { word = word.toString().toLowerCase().replace(/[\W_]/g, ''); let left = 0; let right = word.length - 1; while(left < right) { if (word[left] !== word[right]) { return false; } left++; right--; } return true } for(i=0; i<10; i++){ isPalindrome('anA'); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
A
B

Fastest: N/A

Slowest: N/A

Latest run results:

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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 its test cases to understand what's being tested.

**Benchmark Definition JSON**

The provided `Benchmark Definition` JSON is empty, but it typically contains information about the benchmark, such as its name, description, script preparation code, and HTML preparation code. In this case, we'll focus on the individual test cases instead.

**Individual Test Cases**

There are two test cases:

1. **Test Case A**
The `Benchmark Definition` for this test case defines a function `isPalindrome(word)` that checks if a given word is a palindrome. The function does the following:
	* Converts the word to lowercase and removes non-alphanumeric characters.
	* Creates an array copy of the word.
	* Reverses the array copy using the `reverse()` method.
	* Compares the original word with the reversed array join using the `===` operator.
2. **Test Case B**
The `Benchmark Definition` for this test case defines a similar function `isPalindrome(word)` as Test Case A, but with some differences:
	* The loop variables are defined using let statements: `let left = 0;` and `let right = word.length - 1;`.
	* The comparison logic uses a while loop instead of the array methods used in Test Case A.
	* The function returns `false` as soon as it finds a mismatch between the characters at the left and right indices.

**Options Compared**

The two test cases compare the performance of two approaches for checking if a word is a palindrome:

1. **Test Case A**: Uses array methods (`split()`, `reverse()`, `join()`) to check if the word is a palindrome.
2. **Test Case B**: Uses manual loop iteration with indices to check if the word is a palindrome.

**Pros and Cons**

Here are some pros and cons of each approach:

* **Test Case A (Array Methods)**:
	+ Pros: Can be more concise and easier to read, especially for complex string manipulations.
	+ Cons: May be slower due to the overhead of creating and manipulating arrays.
* **Test Case B (Manual Loop Iteration)**:
	+ Pros: Can be faster because it avoids array creation and manipulation overhead.
	+ Cons: Can be more verbose and harder to read, especially for complex logic.

**Library Usage**

There is no explicit library usage in these test cases. However, JavaScript's built-in methods like `split()`, `reverse()`, and `join()` are used, which are part of the standard library.

**Special JS Features or Syntax**

No special JavaScript features or syntax are explicitly used in these test cases. The focus is on comparing the performance of two different string manipulation approaches.

**Other Alternatives**

If you wanted to add more alternatives to this benchmark, you could consider:

* Using a different approach for checking if a word is a palindrome, such as using a recursive function.
* Adding noise or variations to the input data to make the comparison more challenging.
* Using different browsers, platforms, or devices to test the performance on various environments.
* Measuring other aspects of performance, such as memory usage or response time.

I hope this explanation helps you understand the benchmark and its test cases!

Related benchmarks:

aa vs bb (version: 0)

Comparing performance of: A vs B

Created: 5 years ago by: Guest

Jump to the latest result

A

B

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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