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functional vs fill
(version: 0)
Comparing performance of:
functional vs fill method
Created:
5 years ago
by:
Guest
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Tests:
functional
Array.from(Array(3), () => 0)
fill method
new Array(3).fill(0)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
functional
fill method
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 its components. **Benchmark Definition** The benchmark definition is a JSON object that represents a specific task to be measured. In this case, there are two test cases: 1. "functional vs fill": This test compares the performance of using the `Array.from()` method versus the `fill()` method in JavaScript. 2. The script preparation code is empty, which means that no additional setup or initialization code needs to be executed before running the benchmark. **Options being compared** The two options being compared are: 1. **`Array.from()` method**: This method creates a new array from an iterable or an array-like object. In this case, it's used with `Array(3)` and a callback function that returns 0. 2. **`fill()` method**: This method fills all elements of an existing array with a specified value. **Pros and Cons** Here are some pros and cons of each approach: 1. **`Array.from()` method**: * Pros: + More flexible, as it can be used with various iterables or array-like objects. + Allows for more complex initialization logic (e.g., using a callback function). * Cons: + Can be slower due to the overhead of creating a new array and iterating over the iterable. 2. **`fill()` method**: * Pros: + Faster, as it only needs to fill the existing array with a value. * Cons: + Less flexible, as it can only be used with existing arrays. **Library usage** There is no explicit library usage in this benchmark, so we won't discuss any additional libraries or dependencies. **Special JavaScript features or syntax** There are no special JavaScript features or syntax mentioned in the provided code. The use of `Array.from()` and `fill()` methods is standard JavaScript syntax. **Other alternatives** If you wanted to compare other approaches, here are some possible alternatives: 1. **`slice()` method**: Instead of using `Array.from()`, you could use the `slice()` method to create a new array. 2. **`Array constructor`**: You could also use the traditional array constructor (e.g., `new Array(3)` ) instead of `Array.from()`. 3. **Other initialization methods**: Depending on your specific requirements, you might want to explore other methods for initializing arrays, such as using a loop or a recursive function. In conclusion, this benchmark is designed to compare the performance of two common JavaScript array initialization methods: `Array.from()` and `fill()`. The test uses a simple script preparation code and no additional libraries or dependencies.
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