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** vs pow vs memoized **
(version: 0)
Comparing performance of:
** vs Pow vs Memoized **
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
window.memoizedAsterisk = _.memoize((digits) => 1 / 10 ** digits);
Tests:
**
1 / 10 ** 5
Pow
1 / Math.pow(10, 5)
Memoized **
window.memoizedAsterisk(5);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
Previous results
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Test case name
Result
**
Pow
Memoized **
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark and explain what's being tested. **Benchmark Overview** The benchmark compares three approaches to calculate `1 / 10 ** 5`: 1. **Exponentiation using the `**` operator**: This is the built-in exponentiation operator in JavaScript, which uses a fast algorithm to calculate powers. 2. **Using `Math.pow()`**: This function takes two arguments: the base and the exponent. It calculates the power of the base raised to the exponent. 3. **Memoized exponentiation using Lodash's `_` library**: This approach caches the result of a function so that it can be reused instead of recalculated every time. **Options Compared** The three approaches are compared in terms of execution speed, measured by the number of executions per second (ExecutionsPerSecond). **Pros and Cons** * **Exponentiation using `**` operator**: + Pros: Fastest, most efficient way to calculate exponentiation. + Cons: May have limited support on older browsers or devices with outdated JavaScript engines. * **Using `Math.pow()`**: + Pros: Widely supported by most modern browsers and devices. Easy to understand and implement. + Cons: Slower than the exponentiation operator, especially for large exponents. * **Memoized exponentiation using Lodash's `_` library**: + Pros: Can be faster for repeated calculations of the same value, thanks to caching. + Cons: Requires including an additional library (Lodash) and may have slightly slower initialization time. **Library Description** The benchmark uses Lodash's `_` library, which provides a `memoize()` function that caches the result of a function so that it can be reused. In this case, the memoized version is assigned to `window.memoizedAsterisk`. **Special JS Feature/Syntax** There isn't any special JavaScript feature or syntax used in these benchmark tests. **Other Alternatives** If you want to explore alternative approaches to exponentiation, you could consider using: * The `exponentiate()` function from the `mathjs` library, which is a fast and accurate implementation of exponentiation. * A custom implementation of exponentiation using bit manipulation or other optimized algorithms. Keep in mind that these alternatives may have different trade-offs in terms of speed, accuracy, and code complexity.
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