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native find vs lodash _.find for object
(version: 0)
Compare the new ES6 spread operator with the traditional concat() method
Comparing performance of:
array find vs _.find
Created:
6 years ago
by:
Guest
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HTML Preparation code:
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>
Script Preparation code:
var users = { 0:{ 'user': 'joey', 'age': 32 }, 1:{ 'user': 'ross', 'age': 41 }, 2:{ 'user': 'chandler', 'age': 39 } }
Tests:
array find
// Native Object.values(users).find(function (o) { return o.age < 40; })
_.find
_.find(users, function (o) { return o.age < 40; })
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
_.find
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 benchmark and explain what is being tested. **Benchmark Overview** The benchmark compares two approaches to find an element in an object: 1. Using JavaScript's native `Object.values()` method with the `find()` method. 2. Using Lodash's `_find()` function. **Options Compared** The benchmark tests two options for finding an element in an object: * Native approach: `Object.values(users).find(function (o) { return o.age < 40; })` + Uses `Object.values()` to get an array of object values, and then uses the `find()` method to search for the first value that satisfies the condition. * Lodash approach: `_.find(users, function (o) { return o.age < 40; })` + Uses Lodash's `_find()` function to find the first element in the `users` object that satisfies the given condition. **Pros and Cons of Each Approach** **Native Approach** Pros: * No external library dependencies. * Simple and concise syntax. Cons: * May be slower due to the overhead of creating an array of object values. * May not be as efficient as Lodash's optimized implementation. **Lodash Approach** Pros: * Optimized implementation that is likely faster than the native approach. * Provides additional functionality (e.g., handling null or undefined values). Cons: * Requires an external library dependency (Lodash). * Additional code to import and require Lodash. **Library: Lodash** Lodash is a popular JavaScript utility library that provides a set of helper functions for tasks such as array manipulation, object traversal, and functional programming. The `_find()` function is part of the "More Utils" module in Lodash, which makes it easy to find elements in arrays or objects. **Other Considerations** * **ES6 Spread Operator**: While not explicitly mentioned in the benchmark, the ES6 spread operator (`...`) can also be used to get an array of object values. For example: `Object.values(users).map((user) => user.age < 40)` might be a more efficient approach than the native `find()` method. * **Browser Support**: The benchmark results are for Chrome 76 on Mac OS X 10.14.6, which means that the benchmark may not work in older browsers or with different operating systems. **Other Alternatives** If you want to test alternative approaches, you could consider using other libraries like: * Ramda: A functional programming library that provides a similar `_find()` function. * Underscore.js: Another utility library that provides an `_find()` function. * Array.prototype.find(): Some browsers and environments may support the `Array.prototype.find()` method, which can be used to achieve a similar result. Keep in mind that benchmarking can be complex, and results may vary depending on the specific use case and environment.
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