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topkek
(version: 0)
Comparing performance of:
js vs lodash
Created:
3 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>
Script Preparation code:
var value = "12345"
Tests:
js
value.includes("23")
lodash
_.includes(value, "23")
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
js
lodash
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 and explain what's being tested, compared, and their pros and cons. **Benchmark Definition** The benchmark definition is a simple JavaScript expression that tests whether a string contains a specific substring. The two expressions being compared are: 1. `value.includes("23")` (without any library) 2. `_.includes(value, "23")` (with the Lodash library) **Comparison of Expressions** * **Without Lodash**: This is a built-in JavaScript method that checks if a string contains a specific substring. It iterates through the characters of the string and returns `true` as soon as it finds the match. + Pros: Simple, lightweight, and widely supported by most browsers. + Cons: May be slower for large strings or complex searches due to its linear scanning approach. * **With Lodash**: This is a popular utility library that provides various functions for string manipulation, among other things. The `_.includes()` method is a simple way to check if an array contains a specific value (in this case, a string). + Pros: Faster and more efficient than the built-in approach due to its optimized implementation. + Cons: Adds unnecessary weight to your application, as it's a separate library that needs to be included. **Library - Lodash** Lodash is a popular JavaScript utility library that provides a wide range of functions for tasks like: * String manipulation (e.g., `_.trim()`, `_.indexOf()`), * Array manipulation (e.g., `_.filter()`, `_.map()`), * Object manipulation (e.g., `_.keys()`, `_.values()`), * Functional programming utilities (e.g., `_.map()`, `_.reduce()`). Lodash is widely used in the JavaScript community, and its functions are often preferred over their native JavaScript equivalents for performance and readability. **Special JS Feature or Syntax - None** There's no special JavaScript feature or syntax being used here. The expressions are standard JavaScript code that uses built-in methods (for the `includes()` method) and a library (for the Lodash implementation). **Other Alternatives** If you want to test alternative string containment methods, some options could be: * Using a regular expression: `value.match(/23/)` (Note: This will match only one occurrence of "23" in the string) * Using a custom loop or iterative approach * Using a different library (e.g., underscore.js, moment.js) that provides similar functionality Keep in mind that these alternatives may have different performance characteristics and trade-offs compared to the built-in `includes()` method or Lodash's implementation.
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