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set to array performance (slice, Array.from, forEach)
(version: 0)
Comparing performance of:
Slice vs Array.From vs forEach
Created:
4 years ago
by:
Guest
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Tests:
Slice
const testSet = new Set([1, 2, 3]); const newTestArray = [...testSet];
Array.From
const testSet = new Set([1, 2, 3]); const newTestArray = Array.from(testSet);
forEach
const testSet = new Set([1, 2, 3]); const newTestArray = []; testSet.forEach(v => newTestArray.push(v));
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (3)
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Test case name
Result
Slice
Array.From
forEach
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 provided benchmark and explain what's being tested. **Benchmark Definition** The benchmark is designed to measure the performance of three different approaches for converting a Set data structure to an array: 1. Using the spread operator (`Array.from()`) 2. Using a `forEach` loop 3. Using the slice method **Options Compared** Here are the options being compared, along with their pros and cons: * **Array.from()**: This approach creates a new array from the Set elements using the `Array.from()` method. Pros: concise and efficient. Cons: may have additional overhead due to function call. * **forEach loop**: This approach iterates over each element in the Set using a `forEach` loop, pushing it to a new array. Pros: simple and easy to understand. Cons: may be slower than `Array.from()` due to the additional iteration. * **Slice method**: This approach uses the slice method to extract a subset of elements from the original array (not applicable in this case, since we're converting from Set). Pros: none notable. Cons: not relevant to this specific benchmark. **Library Usage** None of the benchmark tests explicitly use any external libraries. **Special JS Features or Syntax** The `Set` data structure and its methods (`Array.from()`) are standard JavaScript features. The `forEach` loop is also a built-in JavaScript syntax. **Benchmark Preparation Code** The provided code snippet for each test case shows how to create a new Set from an array of numbers, convert it to an array using the specified approach, and then execute the conversion in a loop (for the `forEach` option). **Other Alternatives** If you were to implement these benchmarks using a different programming language or framework, you would likely need to: * Use similar data structures (e.g., arrays or sets) to mimic the behavior of JavaScript's Set. * Implement equivalent methods for array conversion (e.g., `for` loops or `map()` functions). * Possibly use platform-specific APIs or optimized libraries for performance benchmarking. In summary, this benchmark is designed to compare the performance of three different approaches for converting a Set data structure to an array in JavaScript. The options being compared are concise and efficient (`Array.from()`), simple but potentially slower (`forEach` loop), and not relevant (`slice method`).
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