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Array.prototype.slice vs Lodash take
(version: 0)
Comparing performance of:
Lodash take vs Array.prototype.slice
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src="lodash.js"></script>
Script Preparation code:
var array = [...Array(1000).keys()];
Tests:
Lodash take
_.slice(55,77)
Array.prototype.slice
array.slice(55,77)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Lodash take
Array.prototype.slice
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the benchmark definition and test cases to understand what's being tested. **Benchmark Definition:** The benchmark measures two approaches for slicing an array: 1. **Array.prototype.slice**: This is a built-in method in JavaScript arrays, which returns a new slice of the original array. 2. **Lodash take**: Lodash is a popular utility library that provides various functions for tasks like array manipulation. `take` is a function that returns elements from an array starting from a specified index. **Test Cases:** The benchmark consists of two test cases: 1. `_.slice(55,77)`: This calls the `slice` method on the Lodash `take` function, passing an index range (55 to 77). 2. `array.slice(55,77)`: This calls the built-in `slice` method on a JavaScript array object, passing the same index range. **Comparison:** The benchmark compares the performance of these two approaches: * **Array.prototype.slice**: The built-in method used by JavaScript arrays. * **Lodash take**: A utility function from the Lodash library that provides an alternative way to slice arrays. **Pros and Cons:** **Array.prototype.slice:** Pros: * Built-in, so it's likely to be optimized for performance. * Only depends on JavaScript engine specifics. Cons: * May have limitations in terms of array size or complexity. * Can be slower than a specialized library like Lodash for simple use cases. **Lodash take:** Pros: * Provides an alternative way to slice arrays, which can be useful in certain scenarios. * Often optimized and tested for performance by the Lodash maintainers. Cons: * Introduces an additional dependency (the Lodash library). * May have overhead due to function call and argument passing. **Other Considerations:** * The benchmark measures the **executions per second**, which gives us a good idea of how fast each approach is. * The results will also depend on factors like array size, JavaScript engine specifics, and hardware performance. In summary, this benchmark tests two approaches to slicing arrays in JavaScript: the built-in `Array.prototype.slice` method versus Lodash's `take` function. The results will help users decide which approach to use depending on their specific needs and performance requirements.
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