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Jason stringify vs object.keys
(version: 0)
Comparing performance of:
Object.keys vs JSON string
Created:
2 years ago
by:
Guest
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Script Preparation code:
var obj = { "employees": [ { "id": 1, "name": "John Doe", "position": "Software Engineer", "department": "Development", "skills": ["JavaScript", "React", "Node.js"], "salary": 80000, "address": { "street": "123 Main St", "city": "Anytown", "state": "CA", "zip": "12345" } }, { "id": 2, "name": "Jane Smith", "position": "Project Manager", "department": "Management", "skills": ["Agile", "Scrum", "Communication"], "salary": 90000, "address": { "street": "456 Elm St", "city": "Othertown", "state": "NY", "zip": "67890" } }, { "id": 3, "name": "Alice Johnson", "position": "Quality Assurance Engineer", "department": "Quality Assurance", "skills": ["Testing", "Automation", "Selenium"], "salary": 70000, "address": { "street": "789 Maple Ave", "city": "Sometown", "state": "TX", "zip": "54321" } } ], "projects": [ { "id": 1, "name": "Project Alpha", "team": ["John Doe", "Jane Smith"], "budget": 100000, "deadline": "2024-12-31" }, { "id": 2, "name": "Project Beta", "team": ["Alice Johnson"], "budget": 50000, "deadline": "2024-06-30" } ], "departments": [ { "name": "Development", "manager": "John Doe", "employees": ["John Doe"] }, { "name": "Management", "manager": "Jane Smith", "employees": ["Jane Smith"] }, { "name": "Quality Assurance", "manager": "Alice Johnson", "employees": ["Alice Johnson"] } ] }
Tests:
Object.keys
Object.keys(obj).length === 0
JSON string
JSON.stringify(obj) === "{}"
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Object.keys
JSON string
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
2 years ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36
Browser/OS:
Chrome 121 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=506519" width="100%" height="500px"></iframe>
Test name
Executions per second
Object.keys
5754376.5 Ops/sec
JSON string
292635.4 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and its various components. **Benchmark Definition JSON** The benchmark definition represents a microbenchmark test created by users on MeasureThat.net. It consists of two main parts: 1. **Script Preparation Code**: This section contains JavaScript code that sets up an object `obj` with nested properties, including arrays and another object. 2. **Html Preparation Code**: This section is empty, indicating that no HTML content is required for this benchmark. **Individual Test Cases** There are two test cases defined within the benchmark: 1. **"Object.keys"`** * Benchmark Definition: `Object.keys(obj).length === 0` * Purpose: This test case measures the performance of the `Object.keys()` method when it's called on the `obj` object. 2. **"JSON string "`** * Benchmark Definition: `JSON.stringify(obj) === "{}"` * Purpose: This test case measures the performance of the `JSON.stringify()` method when it's called on the `obj` object. **Comparison** The two test cases are designed to compare the performance of `Object.keys()` and `JSON.stringify()` methods in JavaScript. The comparison is based on the execution time for each method, measured in executions per second. **Options Compared** In this benchmark, we have two main options being compared: 1. **`Object.keys()`**: This method returns an array of strings representing the enumerable properties of the given object. 2. **`JSON.stringify()`**: This method converts a value (such as an object) to a JSON string. **Pros and Cons** * **`Object.keys()`**: + Pros: Efficient for iterating over object properties, doesn't require parsing or converting data to strings. + Cons: May not be suitable for all use cases where string representation is required. * **`JSON.stringify()`**: + Pros: Returns a human-readable JSON string, can be used for serialization and deserialization purposes. + Cons: Can be slower than `Object.keys()` due to the overhead of parsing and formatting data. **Libraries and Special JS Features** There are no libraries or special JavaScript features mentioned in this benchmark. However, it's worth noting that `JSON.stringify()` uses the JSON (JavaScript Object Notation) standard for serialization. **Other Considerations** When running benchmarks like this one, consider the following factors: * **Data size**: The object `obj` used in this benchmark is relatively small. For larger datasets, performance differences between `Object.keys()` and `JSON.stringify()` may be more pronounced. * **Browser and environment variability**: Different browsers and environments may exhibit varying performance characteristics for each method. This benchmark's results might not generalize to all scenarios. **Alternatives** If you're looking for alternative methods or alternatives to this benchmark, consider the following: * **`forEach()` vs `for...in` loops**: Instead of using `Object.keys()`, you could compare the performance of using a `forEach()` loop versus a traditional `for...in` loop to iterate over object properties. * **`JSON.parse()` vs `JSON.stringify()`**: Compare the performance of parsing and stringifying JSON data using `JSON.parse()` and `JSON.stringify()`, respectively.
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