Benchmark: math pow vs ** - MeasureThat.net

Tests:

pow
var x = Math.pow(54,2);
mult
var y = 54**2

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
pow
mult

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 dive into the world of MeasureThat.net and explore what's being tested in this benchmark.

**What is being tested?**

The benchmark measures the performance difference between two ways to calculate the square of a number: using the `Math.pow()` function or the exponentiation operator (`**`).

In other words, the test compares how fast Chrome 92 can execute these two expressions:

1. `var x = Math.pow(54,2);`
2. `var y = 54**2`

**Options compared**

There are two main options being compared:

1. **Math.pow() function**: A built-in JavaScript method that takes two arguments: the base and the exponent.
2. **Exponentiation operator (`**`)**: A shorthand way to raise a number to a power.

**Pros and cons of each approach**

Here's a brief rundown of the advantages and disadvantages of each:

* `Math.pow()` function:
	+ Pros: Portable, widely supported across browsers and platforms.
	+ Cons: May be slower due to method call overhead (although this difference is often negligible).
* Exponentiation operator (`**`):
	+ Pros: Faster, as it's a single operation instead of a separate method call.
	+ Cons: Not supported in older browsers or environments that don't implement this syntax.

**Other considerations**

The benchmark doesn't account for other factors that might affect performance, such as:

* CPU architecture (e.g., x86 vs. ARM)
* Memory allocation and deallocation
* Garbage collection frequency
* Browser-specific optimizations

**Library used in the test case**

There is no explicit library mentioned in the provided code snippet. However, it's worth noting that MeasureThat.net typically uses a framework like **Benchmark.js**, which provides a simple way to create benchmarks.

**Special JS feature or syntax**

The exponentiation operator (`**`) is a relatively recent addition to JavaScript (introduced in ECMAScript 2016). While widely supported, some older browsers might not implement this syntax. However, since MeasureThat.net uses a modern browser (Chrome 92), this should be fully supported.

In summary, the benchmark measures the performance difference between two ways to calculate the square of a number: using the `Math.pow()` function and the exponentiation operator (`**`). The results highlight the advantage of using the exponentiation operator for faster execution.

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36

Browser/OS: Chrome 92 on Windows

View result in a separate tab

Test name	Executions per second
pow	8010896.0 Ops/sec
mult	1114963840.0 Ops/sec

Related benchmarks:

math pow vs ** (version: 0)

Comparing performance of: pow vs mult

Created: 3 years ago by: Guest

Jump to the latest result

pow

mult

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):