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Ramda unique
(version: 0)
Comparing performance of:
Equal toFixed vs Equal round
Created:
5 years ago
by:
Guest
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HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.27.0/ramda.min.js"></script>
Script Preparation code:
var data = _.range(10000).map(function(i) { return { counter: i, date: new Date(), name: 'Adam', value: (i % 2500) * 0.0001 + 10000 } });
Tests:
Equal toFixed
R.uniqWith( (a, b) => a.value.toFixed(4) === b.value.toFixed(4), data )
Equal round
R.uniqWith( (a, b) => Math.round(10000 * a.value) === Math.round(10000 * b.value), data )
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Equal toFixed
Equal round
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 and explain what's being tested, compared, and other considerations. **Benchmark Definition** The `Script Preparation Code` section defines a JavaScript array of 10,000 objects with various properties, including a `value` property that is calculated as `(i % 2500) * 0.0001 + 10000`. This means that the `value` property will be slightly different for each object due to the random calculation. The `Html Preparation Code` section loads the Ramda library, which provides a functional programming style for working with data. **Individual Test Cases** There are two test cases: 1. **Equal toFixed**: This test case uses the `R.uniqWith` function from the Ramda library to find unique values in the array that have the same value when converted to four decimal places using `toFixed(4)`. In other words, it checks if there are any duplicate values in the array that are identical when rounded to four decimal places. 2. **Equal round**: This test case uses the `R.uniqWith` function from the Ramda library to find unique values in the array that have the same value when rounded to the nearest integer using `Math.round(10000 * a.value) === Math.round(10000 * b.value)`. **Options Compared** The two test cases compare different strategies for handling duplicate values in the array: * **Equal toFixed**: Uses `toFixed(4)` to round values to four decimal places and checks for identical results. * **Equal round**: Uses `Math.round` with multiplication by 10,000 to round values to the nearest integer. **Pros and Cons** Here are some pros and cons of each approach: * **Equal toFixed**: + Pros: More precise rounding, can catch duplicate values that are very close together. + Cons: May not catch duplicates that are identical when rounded to a different number of decimal places. * **Equal round**: + Pros: Simpler implementation, easier to understand. + Cons: Less precise rounding, may miss duplicates that are close together. **Other Considerations** The test cases use the Ramda library's `uniqWith` function to find unique values in the array. This means that if two values are considered equal by this function (e.g., due to using a custom equality check), they will be treated as the same value. The test cases also use Chrome 89 and a Mac OS X 10.14.5 environment, which may affect the results. **Alternatives** If you wanted to implement these tests without using the Ramda library, you could: * Use JavaScript's built-in `Array.prototype.filter()` method to find unique values in the array. * Implement your own equality check function using a custom algorithm. * Use a different library or framework that provides similar functionality. Keep in mind that implementing these tests from scratch would likely be more complex and time-consuming than using an existing library like Ramda.
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