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lodash uniq vs set array comprehension
(version: 0)
Comparing performance of:
Set vs Array
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js'></script>
Tests:
Set
return [...new Set([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7])]
Array
return _.uniq([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
Set
Array
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Overview of the Benchmark** The provided benchmark compares two approaches to remove duplicates from an array: using the built-in `Array.prototype.set()` method and using Lodash's `_.uniq()` function. **Options Compared** 1. **Built-in `Array.prototype.set()`**: This method is not a standard JavaScript method for removing duplicates from an array. It seems to be a typo or misinterpretation of the spread operator (`...`), which creates a new array with the elements from the original array, without duplicate values. 2. **Lodash's _.uniq() function**: This is a utility function that returns a new array with unique values. **Pros and Cons** 1. **Built-in `Array.prototype.set()`**: * Pros: None mentioned in the benchmark. * Cons: The method itself is not suitable for removing duplicates, it might cause unexpected behavior if not used correctly, and its usage here seems to be a mistake. 2. **Lodash's _.uniq() function**: * Pros: Lodash's utility functions are widely used, well-tested, and optimized for performance. * Cons: It adds an external dependency (Lodash), which might not be desirable for all users. **Library and its Purpose** The benchmark uses Lodash (version 4.17.15) as a library. Lodash is a popular JavaScript utility library that provides various functions for common tasks, such as string manipulation, array and object manipulation, and more. In this case, the _.uniq() function is used to remove duplicates from an array. **Special JS Feature or Syntax** None mentioned in the benchmark. **Other Considerations** * **Testing Framework**: The benchmark does not specify which testing framework is being used (e.g., Jest, Mocha). This might affect how the results are generated and reported. * **Browser Support**: The benchmark only tests on Firefox 110. Other browsers, like Chrome or Edge, may have different performance characteristics for this specific benchmark. **Alternatives** If you want to measure the performance of removing duplicates from an array without using Lodash, you could consider implementing your own solution using JavaScript's built-in methods (e.g., `Array.prototype.filter()`, `Array.prototype.includes()`). Alternatively, you could use a different library or framework that provides similar functionality.
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