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set spread vs. generator
(version: 0)
Comparing performance of:
spread vs generator
Created:
6 years ago
by:
Guest
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Script Preparation code:
window.setToUse1 = new Set(["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]) window.setToUse2 = new Set(["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"]) window.setToUse3 = new Set(["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"])
Tests:
spread
const blarg = new Set([...setToUse1, ...setToUse2, ...setToUse3]);
generator
const blarg2 = new Set([ ...(function*() { yield* setToUse1; yield* setToUse2; yield* setToUse3; })(), ]);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
spread
generator
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
gemma2:9b
, generated one year ago):
This benchmark compares two ways to combine three sets in JavaScript: using the spread operator (`...`) and using a generator function. **Options Compared:** * **Spread Operator (`...`):** This syntax directly expands the contents of each set into a new set. The code `const blarg = new Set([...setToUse1, ...setToUse2, ...setToUse3]);` demonstrates this. * **Generator Function:** A generator function is a special type of function that can produce a sequence of values using the `yield` keyword. In this case, the generator iterates through each set and yields its elements one by one. The `const blarg2 = new Set([... (function*() { yield* setToUse1; yield* setToUse2; yield* setToUse3; })(),]);` demonstrates this. **Pros & Cons:** * **Spread Operator:** * **Pros:** Concise and easy to read. * **Cons:** Can be less performant than generators for very large datasets, as it might create intermediate arrays. * **Generator Function:** * **Pros:** Can be more memory-efficient for large datasets, as it only yields values one at a time. * **Cons:** More verbose and potentially harder to read than the spread operator. **Other Considerations:** The choice between these approaches often depends on the size of the dataset and performance requirements. For smaller datasets, the readability of the spread operator might outweigh any minor performance differences. However, for very large datasets, generators can offer significant memory savings. Let me know if you have any other questions about this benchmark or want to explore alternative methods for combining sets in JavaScript!
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