Benchmark: math pow vs multiply vs multiply2

Tests:

Math.pow
var x = Math.pow(54,2);
Multiply
var y = 54*54
Multiply2
var z = 54**2

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Math.pow
Multiply
Multiply2

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

Browser/OS: Chrome 136 on Windows

View result in a separate tab

Test name	Executions per second
Math.pow	165248832.0 Ops/sec
Multiply	189572752.0 Ops/sec
Multiply2	177601968.0 Ops/sec

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 and analyze what's being tested on MeasureThat.net.

**Benchmark Definition**

The benchmark definition provides information about the test case. In this case, there is only one benchmark definition:

`"var x = Math.pow(54,2);"`

This code defines a variable `x` by raising 54 to the power of 2 using the `Math.pow()` function.

**Test Cases**

There are three individual test cases:

1. **`Math.pow`**: This test case runs the original benchmark definition: `var x = Math.pow(54,2);`.
2. **`Multiply`**: This test case uses a different approach to calculate the square of 54: `var y = 54*54`. This is equivalent to using the `Math.pow()` function.
3. **`Multiply2`**: This test case uses exponentiation syntax (`**`) instead of the `Math.pow()` function or multiplication: `var z = 54**2`.

**Options Compared**

In this benchmark, we have three options compared:

* `Math.pow()`: Uses the `Math.pow()` function to raise a number to a power.
* `Multiply`: Uses simple multiplication to calculate the square of a number.
* `Multiply2`: Uses exponentiation syntax (`**)` to raise a number to a power.

**Pros and Cons**

Here's a brief analysis of each approach:

* **`Math.pow()`**: This is the most efficient way to calculate powers, as it's implemented in native code by the JavaScript engine. It's also widely supported across different browsers.
* **`Multiply`**: This approach can be slower than `Math.pow()`, especially for large numbers, since it involves repeated multiplication. However, it's simple and easy to implement.
* **`Multiply2`**: This syntax is more concise than `Math.pow()` but might not be as efficient due to the overhead of parsing and executing exponentiation expressions.

**Library**

There are no libraries used in these test cases.

**Special JS Features or Syntax**

The only special feature used here is the exponentiation syntax (`**`) introduced in ECMAScript 2016. This syntax allows you to raise a number to a power using a simple symbol, making code more concise and readable.

**Other Alternatives**

If we were to consider alternative approaches for calculating powers, some options might include:

* **`Math.sqrt()`**: Using the square root function to calculate the square of a number is not efficient, as it involves multiple operations.
* **`Bitwise shift`**: For small numbers, you could use bitwise shift operators to calculate powers efficiently. However, this approach becomes impractical for large numbers.
* **Custom implementations**: You could also implement your own power calculation functions using loop-based or recursive approaches.

Keep in mind that these alternative approaches might not be as efficient or widely supported as the `Math.pow()` function.

Overall, MeasureThat.net provides a useful platform for testing and comparing different JavaScript performance optimization techniques.

Related benchmarks:

math pow vs multiply vs multiply2 (version: 0)

Comparing performance of: Math.pow vs Multiply vs Multiply2

Created: 6 years ago by: Registered User

Jump to the latest result

Math.pow

Multiply

Multiply2

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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