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Math.pow(,2) vs **2 vs *
(version: 0)
Comparing performance of:
pow vs ** vs *
Created:
2 years ago
by:
Guest
Go to the latest result
Tests:
pow
var tmp = Math.pow(6, 2);
**
var tmp = 6 ** 2;
*
var tmp = 6 * 6;
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
pow
**
*
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Mobile Safari/537.36
Browser/OS:
Chrome Mobile 124 on Android
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=532710" width="100%" height="500px"></iframe>
**
479.0M/s
*
473.5M/s
pow
2.5M/s
View exact numbers
Test name
Executions per second
✓
**
478,960,224 Ops/sec
*
473,499,808 Ops/sec
pow
2,495,742 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested. **Benchmark Definition** The test is comparing three different ways to calculate the square of a number: `Math.pow(6, 2)`, `6 ** 2`, and `6 * 6`. The goal is to determine which method is the fastest in various JavaScript environments. **Options Compared** 1. `Math.pow(6, 2)`: This method uses the `pow` function from the `Math` object. It's a standard way to calculate powers in JavaScript. 2. `6 ** 2`: This method uses the exponentiation operator (`**`). It's a shorthand for "raise to the power of". 3. `6 * 6`: This method uses multiplication to calculate the square. **Pros and Cons** * `Math.pow(6, 2)`: + Pros: Portable across different browsers and environments. + Cons: May be slower due to the overhead of calling a function. * `6 ** 2`: + Pros: Faster than `pow` in modern JavaScript engines. + Cons: Not supported in older browsers or environments that don't implement this operator. * `6 * 6`: + Pros: Simple and easy to understand. + Cons: May not be as efficient as the other two methods, especially for large numbers. **Library/Functionality Used** None of these tests use any external libraries. They are all built-in JavaScript functions or operators. **Special JS Feature/Syntax** The exponentiation operator (`**) is a relatively new feature in JavaScript, introduced in ECMAScript 2016 (ES6). It's supported by most modern browsers and engines, but may not be available in older ones. The `Math.pow` function is an older way of calculating powers and has been around since the early days of JavaScript. **Other Alternatives** If you wanted to test other methods for calculating squares, some alternatives could include: * Using a dedicated library like MathJS or Exponent * Implementing a custom square calculation function using bitwise operations (e.g., `x * x`) * Using a different mathematical algorithm, such as the Babylonian method However, these alternatives are not typically used in production code and would likely be slower than the built-in methods tested here.
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