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from vs stat1
(version: 0)
Testing the difference between creating filled arrays.
Comparing performance of:
stat vs Array.from()
Created:
2 years ago
by:
Guest
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Tests:
stat
const test2 =()=> [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1];
Array.from()
const test1 = ()=>Array.from(Array(11).keys(), (i) => i / 10);
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Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
stat
Array.from()
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 create an array of numbers from 0 to 1 in increments of 0.1. **Options Compared:** * **`stat`:** This approach uses a simple declaration with literal values: ```javascript const test2 =()=> [0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1]; ``` * **`Array.from()`:** This approach uses the `Array.from()` method to generate the array: ```javascript const test1 = ()=>Array.from(Array(11).keys(), (i) => i / 10); ``` **Pros and Cons:** * **`stat` (Literal Values):** * **Pros:** Very concise and easy to read. * **Cons:** Can be less flexible if you need to dynamically change the number of elements or the increment size. * **`Array.from()`:** * **Pros:** More flexible. You can easily adjust the array size and increment using parameters passed to `Array(11).keys()`. It's also a more general-purpose method for creating arrays from iterables. * **Cons:** Slightly less readable than the literal value approach for this specific scenario. **Other Considerations:** * **Performance:** In most cases, these two approaches will have very similar performance. The difference is likely to be negligible unless you're dealing with extremely large arrays. This benchmark shows that `Array.from()` is slightly faster in this particular case. **Alternatives:** While less common for creating simple number sequences, here are some alternatives: * **`for` Loop:** You could use a `for` loop to explicitly create the array elements. This gives you more fine-grained control but can be more verbose. * **`reduce()`:** You could use the `reduce()` method to build the array incrementally. Let me know if you have any other questions!
Related benchmarks:
Array.from() vs new Array() - empty
from vs stat
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Array() vs Array.from() fill
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