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spread against without
(version: 0)
Comparing performance of:
lodash vs spread
Created:
2 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
//const arr = Array.from({ length: 100000 }, (_, i) => (i.toString()))
Tests:
lodash
const arr = Array.from({ length: 100000 }, (_, i) => (i.toString())) const result = _.without(arr, '0')
spread
const arr = Array.from({ length: 100000 }, (_, i) => (i.toString())) const [first, ...rest] = arr const result = rest
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
lodash
spread
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 provided JSON data to understand what is being tested. **Benchmark Definition** The benchmark definition represents a test case that compares two approaches: using `lodash` and using the spread operator (`...`). The script preparation code sets up an array with 100,000 elements, each as a string representation of a number. The purpose of this array is to simulate a large dataset that will be used for testing. **Script Preparation Code** The script preparation code creates an array `arr` using `Array.from()` method and populates it with 100,000 elements, where each element is a string representation of a number (e.g., "0", "1", etc.). This array is then passed to the test case as input. **Html Preparation Code** The HTML preparation code includes a reference to the Lodash library, which is used in one of the test cases. Specifically, it loads the `lodash.min.js` file from a CDN, making its functions available for use in the test case. **Test Cases** There are two individual test cases: 1. **Lodash**: This test case uses the `_.without()` function from Lodash to remove all occurrences of the string "0" from the array `arr`. 2. **Spread**: This test case uses the spread operator (`...`) to extract a subset of elements from the array `arr`. Specifically, it extracts all elements except the first one (index 0) using destructuring assignment. **Pros and Cons** The choice between these two approaches depends on various factors: * **Lodash**: + Pros: Lodash provides a robust set of utility functions that can be used to perform various tasks, including filtering and manipulating arrays. Using an existing library can save development time. + Cons: Adding another dependency to the project can increase overhead and dependencies. * **Spread Operator**: + Pros: The spread operator is a native JavaScript feature that can be used in most modern browsers without additional dependencies. It's also more concise and expressive than using Lodash. + Cons: The spread operator might not be supported by older browsers or environments that don't have access to modern JavaScript features. **Other Considerations** * **Performance**: In general, the spread operator is expected to be faster than using a library like Lodash, especially for large datasets. However, the actual performance difference may vary depending on the specific use case and browser. * **Code Readability**: The spread operator can make code more concise and readable, but it also requires understanding of the syntax and semantics of JavaScript destructuring assignment. **Library: Lodash** Lodash is a popular JavaScript library that provides a comprehensive set of utility functions for tasks like array manipulation, string processing, and more. It's widely used in the industry and can simplify development by providing pre-built functions that would otherwise need to be implemented manually. In this specific benchmark, Lodash is used to remove all occurrences of the string "0" from the array `arr`. This approach can be beneficial when working with large datasets or complex filtering scenarios.
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