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Object Deep Copy 2
(version: 0)
Produce a deep copy of a Javascript object where nested objects are not simply references to the originals.
Comparing performance of:
Recursive Deep Copy vs JSON Deep Copy vs lodash clone vs structuredClone
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script> <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
Script Preparation code:
function recursiveDeepCopy(obj) { return Object.keys(obj).reduce((v, d) => Object.assign(v, { [d]: (obj[d].constructor === Object) ? recursiveDeepCopy(obj[d]) : obj[d] }), {}); } function jsonDeepCopy(o) { return JSON.parse(JSON.stringify(o)); } var dimensions = [{ "dimensions": [{ "runtime": { "common": { "client": null, "server": null } } }, { "device": { "android": null, "blackberry": null, "iemobile": null, "iphone": null, "ipad": null, "kindle": null, "opera-mini": null, "palm": null } }, { "environment": { "development": { "dev": null, "test": null }, "production": { "stage": null, "prod": null } } }, { "lang": { "ar": { "ar-JO": null, "ar-MA": null, "ar-SA": null, "ar-EG": null }, "bn": { "bn-IN": null }, "ca": { "ca-ES": null }, "cs": { "cs-CZ": null }, "da": { "da-DK": null }, "de": { "de-AT": null, "de-DE": null }, "el": { "el-GR": null }, "en": { "en-AU": null, "en-BG": null, "en-CA": null, "en-GB": null, "en-GY": null, "en-HK": null, "en-IE": null, "en-IN": null, "en-MY": null, "en-NZ": null, "en-PH": null, "en-SG": null, "en-US": null, "en-ZA": null }, "es": { "es-AR": null, "es-BO": null, "es-CL": null, "es-CO": null, "es-EC": null, "es-ES": null, "es-MX": null, "es-PE": null, "es-PY": null, "es-US": null, "es-UY": null, "es-VE": null }, "fi": { "fi-FI": null }, "fr": { "fr-BE": null, "fr-CA": null, "fr-FR": null, "fr-GF": null }, "hi": { "hi-IN": null }, "hu": { "hu-HU": null }, "id": { "id-ID": null }, "it": { "it-IT": null }, "ja": { "ja-JP": null }, "kn": { "kn-IN": null }, "ko": { "ko-KR": null }, "ml": { "ml-IN": null }, "mr": { "mr-IN": null }, "ms": { "ms-MY": null }, "nb": { "nb-NO": null }, "nl": { "nl-BE": null, "nl-NL": null, "nl-SR": null }, "pl": { "pl-PL": null }, "pt": { "pt-BR": null }, "ro": { "ro-RO": null }, "ru": { "ru-RU": null }, "sv": { "sv-SE": null }, "ta": { "ta-IN": null }, "te": { "te-IN": null }, "th": { "th-TH": null }, "tr": { "tr-TR": null }, "vi": { "vi-VN": null }, "zh": { "zh-Hans": { "zh-Hans-CN": null }, "zh-Hant": { "zh-Hant-HK": null, "zh-Hant-TW": null } } } }] }]
Tests:
Recursive Deep Copy
var dimensionsCopy = recursiveDeepCopy(dimensions);
JSON Deep Copy
var dimensionsCopy = jsonDeepCopy(dimensions);
lodash clone
var dimensionsCopy = _.cloneDeep(dimensions);
structuredClone
var dimensionsCopy = structuredClone(dimensions)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (4)
Previous results
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Test case name
Result
Recursive Deep Copy
JSON Deep Copy
lodash clone
structuredClone
Fastest:
N/A
Slowest:
N/A
Latest run results:
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Based on the provided data, it appears to be a benchmarking result with various test cases and their corresponding execution times per second. To answer the question without additional context or information, I will provide some general insights: * The benchmark results are for different JavaScript functions: `recursiveDeepCopy`, `jsonDeepCopy`, `_`, and `structuredClone`. These functions are used to deep copy objects. * The browsers being tested are Chrome Mobile 102 on various Android devices. * The execution times per second vary among the test cases, suggesting that each function has a unique performance profile. If you could provide more context or clarify what specific question you would like me to answer (e.g., "Which function is the fastest?", "What is the average execution time per second?"), I'll do my best to assist you further.
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