Benchmark: pow testing - MeasureThat.net

Tests:

pow version
Math.pow(8, 2);
** version
8 ** 2

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow version
** version

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what's being tested, compared, and other considerations.

**What is being tested?**

The provided benchmark tests two ways of raising a number to a power in JavaScript: using the `Math.pow()` method or using the exponentiation operator (`**`).

**Options being compared**

There are two options being compared:

1. **Math.pow()**: This method takes two arguments, the base and the exponent, and returns the result.
2. **Exponentiation operator (`**`)**: This operator is used to raise a number to a power.

**Pros and Cons of each approach**

1. **Math.pow():**
	* Pros:
		+ Widely supported across different browsers and JavaScript engines.
		+ Can be used with negative exponents (e.g., `Math.pow(x, -n)`).
	* Cons:
		+ May be slower than the exponentiation operator due to the method call overhead.
2. **Exponentiation operator (`**`):**
	* Pros:
		+ Faster than the `Math.pow()` method because it is an optimized operator.
		+ More concise and readable code.
	* Cons:
		+ May not be supported in older browsers or JavaScript engines.

**Other considerations**

1. **Libraries**: There are no libraries mentioned in this benchmark, so we don't need to consider their impact on the performance of either option.
2. **Special JS features**: The exponentiation operator (`**`) is a relatively new feature introduced in ECMAScript 2016 (ES7). It's not supported in older browsers or JavaScript engines.

**Alternative approaches**

If you wanted to test other ways of raising a number to a power, some alternatives could be:

1. Using `Math.pow()` with a trick like `x ** y = Math.pow(x, y)`: This approach would add a small overhead due to the unnecessary method call.
2. Using a simple loop: `for (i = 0; i < n; i++) { x *= x; }` or `let result = 1; for (i = 0; i < n; i++) { result *= x; }`. These approaches would be slower than both options being compared.

In summary, the benchmark tests two ways of raising a number to a power in JavaScript: using the `Math.pow()` method and the exponentiation operator (`**`). The exponentiation operator is generally faster but may not be supported in older browsers or JavaScript engines.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; CrOS x86_64 14092.77.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.107 Safari/537.36

Browser/OS: Chrome 93 on Chrome OS 14092.77.0

View result in a separate tab

Test name	Executions per second
pow version	1601904.9 Ops/sec
** version	548828032.0 Ops/sec

Related benchmarks:

pow testing (version: 0)

pow

Comparing performance of: pow version vs ** version

Created: 3 years ago by: Guest

Jump to the latest result

pow version

** version

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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