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loop test 3274623654762356
(version: 0)
loop test
Comparing performance of:
for loop (reverse noop) vs while loop vs reduce
Created:
4 years ago
by:
Guest
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Tests:
for loop (reverse noop)
let acts = "BRA|BRA|FLR|VSL|BRA".split("|"); for (let i = acts.length - 1; i >= 0; --i) { if (acts[i] == "BRA") acts.splice(i, 1); }
while loop
let acts = "BRA|BRA|FLR|VSL|BRA".split("|"); let i = acts.length; while (i--) { if (acts[i] == "BRA") acts.splice(i, 1); }
reduce
const acts = "BRA|BRA|FLR|VSL|BRA".split("|").reduce((a, v) => {return v != 'BRA' && a.push(v), a}, []);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
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Test case name
Result
for loop (reverse noop)
while loop
reduce
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**What is being tested?** The provided JSON represents a set of JavaScript microbenchmarks, each consisting of three test cases: "for loop (reverse noop)", "while loop", and "reduce". The benchmarks aim to measure the performance differences between these three approaches for removing "BRA" strings from a comma-separated string. **Options compared:** 1. **For Loop**: A traditional, iterative approach using a for loop. 2. **While Loop**: An iterative approach using a while loop. 3. **Reduce Method**: A functional programming approach utilizing the Array.prototype.reduce() method. **Pros and Cons of each approach:** * **For Loop**: + Pros: Simple, straightforward, and easy to understand. + Cons: May have performance overhead due to unnecessary iterations or checks. * **While Loop**: + Pros: Similar to for loop, but may be more suitable for certain edge cases. + Cons: May require manual incrementation of the loop counter, adding complexity. * **Reduce Method**: + Pros: Concise and expressive, leveraging functional programming concepts. + Cons: May have performance overhead due to function call and array manipulation. **Library and syntax used:** No external libraries are explicitly mentioned in the provided JSON. However, it's worth noting that the reduce() method is a built-in Array.prototype method, which is part of the ECMAScript standard. **Special JS feature or syntax:** The "noop" (no operation) concept is implied by using an empty statement (i.e., `acts.splice(i, 1);`) without any side effects. This is a common technique in performance testing to ensure that the loop body is executed repeatedly. **Other alternatives:** To further compare these approaches, additional test cases might be added to consider other scenarios, such as: * Using other iterative constructs (e.g., do-while loops). * Employing more advanced functional programming techniques (e.g., using Array.prototype.filter() or Array.prototype.map()). * Incorporating external libraries or modules that can simplify or optimize the code. Keep in mind that these additional test cases would require modifications to the existing benchmark setup and might introduce new variables or assumptions.
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