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Lodash cloneDeep vs JSON Clone - v2
(version: 0)
Comparing performance of:
Lodash cloneDeep vs Json clone
Created:
5 years ago
by:
Guest
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HTML Preparation code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
var MyObject = { description: 'Creates a deep copy of source, which should be an object or an array.', myNumber: 123456789, myBoolean: true, jayson: { stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....', parse: 'JSON.parse() method parses a JSON string...', jayson: { stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....', parse: 'JSON.parse() method parses a JSON string...', jayson: { stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....', parse: 'JSON.parse() method parses a JSON string...', } } } }; var myCopy = null;
Tests:
Lodash cloneDeep
myCopy = _.cloneDeep(MyObject);
Json clone
myCopy = JSON.parse(JSON.stringify(MyObject));
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Lodash cloneDeep
Json clone
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
**Benchmark Overview** The provided JSON represents a JavaScript microbenchmarking test created using the MeasureThat.net platform. The test compares the performance of two methods: `lodash.cloneDeep` and `JSON.parse(JSON.stringify())`. **Library Used: Lodash** Lodash is a popular JavaScript utility library that provides various functions for tasks such as array manipulation, object creation, and more. In this benchmark, `lodash.cloneDeep` is used to create a deep copy of the input object `MyObject`. The purpose of using Lodash is to provide a reliable and efficient way to perform deep copying, which is essential in many JavaScript applications. **JSON Clone Method** The JSON clone method uses `JSON.parse(JSON.stringify(MyObject))` to create a new object that mirrors the structure and properties of the original input object. This method works by serializing the object to a JSON string using `JSON.stringify()`, then parsing the resulting string back into an object using `JSON.parse()`. **Performance Comparison** The benchmark compares the performance of these two methods in terms of execution speed (measured in executions per second). The results indicate that: * `lodash.cloneDeep` is generally faster than `JSON.parse(JSON.stringify())`. * There are some variations in performance between different browsers and devices, but `lodash.cloneDeep` remains consistently faster. **Pros and Cons** Here's a summary of the pros and cons of each approach: * **Lodash cloneDeep:** + Pros: - Faster execution speed - More efficient memory usage (avoids creating intermediate JSON strings) + Cons: - Requires additional library inclusion (`lodash.js`) - May have additional dependencies or overhead * **JSON.parse(JSON.stringify()):** + Pros: - Lightweight and easy to implement - Does not require any external libraries + Cons: - Slower execution speed compared to `lodash.cloneDeep` - Creates intermediate JSON strings, which can lead to increased memory usage **Special JS Feature/Syntax** In this benchmark, no special JavaScript features or syntax are used beyond the standard language. The test focuses on comparing the performance of two established methods for creating deep copies. **Other Alternatives** If you're looking for alternative methods for creating deep copies in JavaScript, consider: * **Object.assign()**: This method can be used to create a shallow copy of an object. For deep copying, use `Object.assign({}, original)` or `JSON.parse(JSON.stringify(original))`. * **ES6 Spread Operator**: Introduced in ECMAScript 2015 (ES6), the spread operator (`{ ...original }`) can be used to create a new object with the same properties as the original. * **third-party libraries**: There are other libraries available that provide more advanced deep copying functionality, such as `deep-copy` or `copier`.
Related benchmarks:
lodash clonedeep vs json.parse(stringify()) vs recursivecopy vs shallowcopy
Lodash cloneDeep vs JSON.parse(JSON.stringify())
lodash clonedeep vs json.parse(stringify()) vs recursivecopy new big
Lodash cloneDeep vs structuredClone vs recursiveDeepCopy vs JSON clone with a more deep test
lodash cloneDeep vs. JSON.parse(JSON.stringify()) vs. structuredClone
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