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lodash size vs native Object.keys length vs JSON string
(version: 1)
Comparing performance of:
_.size vs Object.keys length vs _.isEmpty vs JSON string
Created:
4 years ago
by:
Registered User
Jump to the latest result
HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var lorem = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nulla sit amet ex tincidunt, venenatis lacus ut, rhoncus enim. Cras auctor mollis tortor, eu varius risus gravida egestas. Nam vitae erat malesuada, interdum ligula nec, lobortis dolor. Nunc nibh magna, hendrerit eget dui eu, consequat sagittis enim. Proin ac rutrum ligula. Nunc et nunc quis est consectetur interdum. Phasellus quis dapibus ligula, eget varius metus. Proin orci eros, dignissim nec malesuada ac, pretium non lorem. Donec a elementum nibh. Aliquam feugiat blandit lorem a congue. Donec mi arcu, luctus a pretium et, euismod a nisl. Donec laoreet sapien in felis volutpat consectetur. Donec sed justo quis augue tincidunt dictum. Sed elit justo, sodales eget ex id, rutrum congue tortor. Nunc vel arcu dolor. Mauris nulla libero, consequat non sollicitudin eu, tristique condimentum dui. Donec vulputate euismod libero, in rutrum nibh maximus ut. Sed nisi ex, efficitur at augue sed, imperdiet iaculis dolor. Nunc vehicula scelerisque nulla ut aliquet. Phasellus sit amet nisl vel est cursus pulvinar ut vel est. Mauris ac ligula condimentum, varius purus sed, cursus velit. Proin nisi eros, congue et urna at, ullamcorper ornare risus. Nullam sed enim ac nulla laoreet placerat. Aliquam erat volutpat. Nullam in metus sed augue suscipit vehicula sed at leo. Praesent nec ex dictum, luctus erat in, mollis est. Sed eget urna lectus. Quisque sit amet erat et enim varius tempus non sed ligula. Nulla porttitor erat lacus, sed posuere mi viverra nec. Curabitur vulputate blandit nibh. Morbi tristique orci velit. Pellentesque egestas pulvinar ante. Sed sed ullamcorper lacus, non elementum tellus. Quisque eget imperdiet mi. Integer placerat, nulla vitae molestie auctor, nunc purus faucibus nibh, rutrum cursus arcu quam eget diam. Integer et congue turpis. Nunc placerat augue ante, in sagittis elit ornare iaculis. Curabitur tristique aliquet tellus, eget luctus elit pellentesque at. Phasellus varius commodo libero ut scelerisque. Integer euismod nisl sit amet erat laoreet, non interdum purus dapibus. Donec lobortis vel mauris eget dapibus. Maecenas non neque vehicula, egestas massa quis, varius ipsum. Pellentesque finibus libero sem, a interdum purus maximus id. Phasellus facilisis erat vitae ex varius dignissim. Mauris at congue lectus, eu dictum risus. Integer mattis malesuada nibh, eget viverra odio porta sed. Sed dapibus odio in varius condimentum. Nam egestas erat et convallis tincidunt. Sed volutpat lorem at molestie vulputate. Integer sit amet ex vel augue dictum faucibus et vitae quam. Quisque et tristique urna, sit amet condimentum mauris. Sed ac ornare sapien. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia curae; Morbi tincidunt lectus quis tellus efficitur, in ullamcorper dolor posuere. Phasellus sodales rhoncus ipsum, quis accumsan nibh pulvinar quis. Nulla vel diam sit amet nunc dapibus fermentum.".split(' ').reduce((prev, e) => {prev[e] = e; return prev}, {});
Tests:
_.size
_.size(lorem)
Object.keys length
Object.keys(lorem).length
_.isEmpty
!_.isEmpty(lorem)
JSON string
JSON.stringify(lorem) !== '{}'
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
Fork
Test case name
Result
_.size
Object.keys length
_.isEmpty
JSON string
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Measuring the performance of JavaScript code is crucial for ensuring efficient and scalable applications. **Benchmark Definition:** The provided benchmark definition measures the performance of three different approaches to check the size of a JavaScript object: 1. `_.size(lorem)`: Using Lodash's `size` function, which returns the number of elements in an array or the length of a string. 2. `Object.keys(lorem).length`: Directly using the `Object.keys()` method and getting the length of the resulting array. 3. `JSON.stringify(lorem) !== '{}'`: Converting the object to a JSON string and checking if it's not equal to an empty string. **Options Compared:** These three approaches differ in their use of built-in JavaScript methods, libraries, and string manipulation: * **_.size(lorem)**: Uses Lodash, a popular utility library for functional programming tasks. + Pros: Convenient and concise way to get the size of an object or array. Lodash is widely used and maintained. + Cons: Adds an external dependency (Lodash) and may not be necessary for small applications. * **Object.keys(lorem).length**: Uses the built-in `Object.keys()` method, which returns an array-like object containing the property names of an object. + Pros: No external dependencies required. Uses built-in methods, making it a good choice for simple cases. + Cons: May be slower than using Lodash due to the extra step of converting the object to an array. * **JSON.stringify(lorem) !== '{}'**: Converts the object to a JSON string and checks if it's not equal to an empty string. + Pros: No external dependencies required. This approach is often used in JSON-related tasks, making it suitable for this benchmark. + Cons: May be slower than using Lodash or `Object.keys()` due to the additional string conversion. **Individual Test Cases:** The provided individual test cases cover each of these approaches: * `_.size(lorem)`: Tests the performance of Lodash's `size` function. * `Object.keys(lorem).length`: Tests the performance of using the built-in `Object.keys()` method. * `!_.isEmpty(lorem)` (not used in this benchmark): Would test the performance of checking if an object is empty using Lodash's `isEmpty` function. * `JSON.stringify(lorem) !== '{}'`: Tests the performance of converting an object to a JSON string and comparing it to an empty string. **Latest Benchmark Result:** The latest benchmark result shows the execution times for each test case across different browsers, devices, and operating systems. The results suggest: * Lodash's `size` function is generally faster than using the built-in `Object.keys()` method. * Converting an object to a JSON string and comparing it to an empty string is slower than the other two approaches. Keep in mind that these results may vary depending on your specific use case, JavaScript engine, and system configuration.
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