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Reduce vs For loop 939424
(version: 0)
Comparing performance of:
For loop vs Reduce
Created:
2 years ago
by:
Guest
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Tests:
For loop
function getAverage(...numbers) { let sum = 0; for (const number of numbers) { sum += number; } return sum / numbers.length; } getAverage(1, 2, 3, 4, 5);
Reduce
function getAverage(...numbers) { return numbers.reduce((a, b) => a + b) / numbers.length; } getAverage(1, 2, 3, 4, 5);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
For loop
Reduce
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the benchmark and explain what's being tested. **Benchmark Definition** The benchmark is comparing two approaches to calculate the average of an array of numbers: using a traditional `for` loop and using the `reduce()` method. **Options Compared** Two options are being compared: 1. **For Loop**: This approach uses a traditional `for` loop to iterate over the array of numbers, adding each number to a running sum. 2. **Reduce**: This approach uses the `reduce()` method, which is a built-in JavaScript function that applies a binary accumulator function (in this case, addition) to all elements in an array. **Pros and Cons** * **For Loop**: + Pros: Easy to understand and implement, works well for small arrays. + Cons: Can be slow for large arrays due to the overhead of the loop control structure, may not be as efficient as other methods like `reduce()`. * **Reduce**: + Pros: More concise and expressive code, can handle large arrays efficiently. + Cons: May require more memory to store the accumulator value. **Library** Neither the `for` loop nor the `reduce()` method relies on a specific library. However, it's worth noting that the `Array.prototype.reduce()` method is part of the JavaScript standard library. **Special JS Feature/Syntax** This benchmark does not use any special JavaScript features or syntax beyond what's commonly used in everyday coding. **Other Alternatives** There are other ways to calculate the average of an array of numbers, such as using a mathematical formula (e.g., `sum / length`) or using a different loop construct (e.g., `forEach()`). However, these alternatives are not being tested by this benchmark. Now that we've broken down the benchmark, let's take a look at how to prepare and run it on MeasureThat.net.
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