Benchmark: 5165168465468465216546516546513657354365435218561549845

Tests:

while
const arreglo = [0,0,0,0,0,-4,-3,-3,-3,-3,-3] let i = 11 while (arreglo[i - 1] === -3) i-- i--
lastIndexOf
const arreglo = [0,0,0,0,0,-4,-3,-3,-3,-3,-3] let i = 11 i = arreglo.lastIndexOf(-4)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
while
lastIndexOf

Fastest: N/A

Slowest: N/A

Latest run results:

No previous 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 dive into the world of JavaScript microbenchmarks!

**Benchmark Overview**

The provided benchmark is designed to compare the performance of two JavaScript methods: `while` loop and `lastIndexOf()` function. The test case uses an array of elements with a specific value (-3) to determine the search direction.

**Options Compared**

In this benchmark, there are two options being compared:

1. **While Loop**: This option uses a traditional `while` loop to iterate through the array in reverse order.
2. **lastIndexOf() Function**: This option uses the built-in `lastIndexOf()` function to find the index of the last occurrence of -4 in the array.

**Pros and Cons of Each Approach**

1. **While Loop**:
	* Pros: Direct control over iteration, potentially more efficient for large arrays.
	* Cons: More verbose code, prone to errors due to manual indexing.
2. **lastIndexOf() Function**:
	* Pros: Concise code, less error-prone, and optimized by the browser's engine.
	* Cons: May be slower due to the overhead of function calls.

**Library Usage**

There is no library usage in this benchmark.

**Special JS Features/Syntax**

The benchmark uses a few features specific to JavaScript:

1. **Template Literals**: The `const arreglo = [0,0,0,0,0,-4,-3,-3,-3,-3,-3]` line uses template literals to define the array.
2. **Arrow Functions**: Although not explicitly used here, it's worth noting that arrow functions are often used in JavaScript for concise code and avoiding the `this` context issue.

**Other Alternatives**

If you wanted to compare these methods using a different approach, you might consider:

1. **Recursive Search**: Implementing a recursive search function to find the last occurrence of -4.
2. **Regular Expressions**: Using regular expressions with the `String.prototype.match()` method to achieve similar results.

**Benchmark Preparation Code**

The provided script preparation code is empty (`null`), which means that no additional setup or initialization is required for the benchmark.

Overall, this benchmark provides a simple and straightforward comparison of two JavaScript methods: `while` loop and `lastIndexOf() function`.

Related benchmarks:

5165168465468465216546516546513657354365435218561549845 (version: 0)

while vs lastIndexOf

Comparing performance of: while vs lastIndexOf

Created: 3 years ago by: Guest

Jump to the latest result

while

lastIndexOf

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):