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array find vs for of break/continue test JM1
(version: 0)
Compare the new ES6 spread operator with the traditional concat() method
Comparing performance of:
array find vs array for of
Created:
4 years ago
by:
Guest
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HTML Preparation code:
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.core.js"></script>
Tests:
array find
var a = ['hello', 'a', 'bc']; var b = a.find(item => item === 'bc');
array for of
var a = ['hello', 'a', 'bc']; var b; for (const item of a) { if (item === 'bc') { b = item; break; } continue; }
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
array find
array for of
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 test cases. **Benchmark Overview** The benchmark is designed to compare two approaches: using the `find()` method with an arrow function, and using a traditional `for...of` loop with a `break` statement. The benchmark aims to determine which approach is faster for finding a specific element in an array. **Test Cases** There are two test cases: 1. **Array Find**: This test case uses the `find()` method with an arrow function to find the index of the string `'bc'` in the array `a`. 2. **Array For Of**: This test case uses a traditional `for...of` loop with a `break` statement to find the index of the string `'bc'` in the same array `a`. **Comparison Options** The benchmark compares two options: 1. **`find()` method**: This method is part of the ECMAScript standard and provides an efficient way to search for a specific element in an array. 2. **Traditional `for...of` loop with `break` statement**: This approach uses a manual loop to iterate over the elements of the array and breaks out of the loop when the desired element is found. **Pros and Cons** * **`find()` method**: + Pros: efficient, concise, and expressive. + Cons: may have performance issues if the array is very large or if the callback function is computationally expensive. * **Traditional `for...of` loop with `break` statement**: + Pros: can be more control-oriented and flexible, especially for complex search patterns. + Cons: can be slower and more verbose than using the `find()` method. **Library Used** The benchmark uses the Lodash library, specifically the `lodash.core.js` module, which is loaded via a script tag in the HTML preparation code. The Lodash library provides various utility functions, including the `find()` method used in the Array Find test case. **Special JS Features or Syntax** None of the provided test cases use any special JavaScript features or syntax that would require additional explanation. **Other Alternatives** If you wanted to write a similar benchmark, you could consider using other approaches, such as: * Using a `while` loop instead of a `for...of` loop. * Using the `some()` method instead of `find()`. * Implementing a custom search algorithm using recursion or iterative techniques. Keep in mind that the choice of approach depends on the specific requirements and performance characteristics of your use case.
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