Benchmark: Performance comparison

Tests:

INFINITY
function flattenAnyArray2(nestedArr) { return nestedArr.flat(Infinity); } const result2 = flattenAnyArray2([ 1, [2, [3, [4, [5, [6, [7, [8, [9, [10, [11, [12, [13, [14, [15, [16, [17, [18, [19, [20]]]]]]]]]]]]]]]]]]], ]);
RECURSION
function flattenAnyArray(nestedArr) { const flattenedArr = []; function flattenHelper(subArr) { for (const el of subArr) { if (Array.isArray(el)) { flattenHelper(el); } else { flattenedArr.push(el); } } } flattenHelper(nestedArr); return flattenedArr; } const result1 = flattenAnyArray([ 1, [2, [3, [4, [5, [6, [7, [8, [9, [10, [11, [12, [13, [14, [15, [16, [17, [18, [19, [20]]]]]]]]]]]]]]]]]]], ]);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
INFINITY
RECURSION

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Measuring the performance of different JavaScript functions can be a complex task, but I'll break it down in a way that's easy to understand.

**Benchmark Definition**

The provided JSON defines two benchmarking scenarios:

1. `flattenAnyArray2`: This function uses the `flat()` method with an infinite number (Infinity) as its second argument. The purpose of this function is to flatten any nested array into a single-level array.
2. `flattenAnyArray`: This function uses recursion to flatten any nested array. It's essentially the same as the previous one, but it achieves the same result using loops instead of the `flat()` method.

**Options Compared**

In this benchmark, we're comparing two approaches to flatten a nested array:

1. **Infinity**: Using the `flat()` method with an infinite number (Infinity) as its second argument.
2. **Reursion**: Using recursion to flatten the array.

**Pros and Cons of Each Approach:**

* **Infinity (flat())**:
	+ Pros:
		- Shorter code
		- Less overhead due to function calls
	+ Cons:
		- Can lead to stack overflow errors for very deep arrays
		- May not work as expected in older browsers or with very large inputs
* **Reursion (manual loop)**:
	+ Pros:
		- More control over the flattening process
		- Can handle edge cases better than `flat()`
	+ Cons:
		- Longer code
		- More overhead due to function calls

**Library/Tool Usage**

There is no library or tool explicitly mentioned in the provided JSON. However, it's worth noting that modern browsers like Chrome have optimized implementations of the `flat()` method and other array methods.

**Special JS Feature/Syntax**

The `Infinity` value used in the benchmark is a special constant in JavaScript that represents an infinite number. It's commonly used as a placeholder for values that don't make sense in numerical contexts, such as "no limit" or "unbounded."

**Other Alternatives**

If you were to modify this benchmark, you could consider adding other approaches to flatten nested arrays, such as:

* Using `slice()` and iteration
* Utilizing libraries like Lodash or Underscore.js
* Implementing a custom flattening algorithm using bitwise operations

Keep in mind that the best approach will depend on your specific use case and performance requirements.

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/114.0.0.0 Safari/537.36

Browser/OS: Chrome 114 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
INFINITY	467019.1 Ops/sec
RECURSION	319329.6 Ops/sec

Related benchmarks:

Performance comparison (version: 0)

Comparing performance of: INFINITY vs RECURSION

Created: one year ago by: Registered User

Jump to the latest result

INFINITY

RECURSION

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):