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Object.setPrototypeOf vs Object literal
(version: 0)
Comparing performance of:
Object.setPrototypeOf vs Object literal
Created:
4 years ago
by:
Guest
Go to the latest result
Script Preparation code:
let object;
Tests:
Object.setPrototypeOf
object = Object.setPrototypeOf({a:1},null);
Object literal
object = {a:1};
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
Object.setPrototypeOf
Object literal
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one year ago
)
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser/OS:
Firefox 138 on Windows
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<iframe src="https://measurethat.net/Embed?id=599253" width="100%" height="500px"></iframe>
Object literal
78.0M/s
Object.setPrototypeOf
8.9M/s
View exact numbers
Test name
Executions per second
✓
Object literal
77,988,576 Ops/sec
Object.setPrototypeOf
8,905,691 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net! **What is tested?** The provided benchmark tests the performance difference between two approaches to create an object in JavaScript: 1. **Object literal**: Creating an object directly using curly brackets `{}` and assigning properties (`object = {a:1};`). 2. **Object.setPrototypeOf**: Using the `Object.setPrototypeOf()` method to set the prototype of an empty object, effectively creating a new object with no prototype chain (`object = Object.setPrototypeOf({a:1}, null);`). **Options compared** The benchmark compares these two approaches to create an object. The options are: * `Object literal`: Creating an object using curly brackets and assigning properties. * `Object.setPrototypeOf`: Using the `Object.setPrototypeOf()` method to set the prototype of an empty object. **Pros and Cons of each approach** 1. **Object Literal** * Pros: + Easier to read and understand for developers familiar with object creation. + Typically faster and more efficient, as it avoids the overhead of setting a prototype chain. * Cons: + May lead to slower performance if used in a large number of iterations or complex scenarios. 2. **Object.setPrototypeOf** * Pros: + Can be useful when working with complex inheritance hierarchies or need to set a custom prototype for an object. * Cons: + Often slower and less efficient than the object literal approach, as it involves setting a prototype chain. **Library and its purpose** In this benchmark, there is no explicit library mentioned. However, the `Object.setPrototypeOf()` method is a built-in JavaScript function that sets the prototype of an object. **Special JS feature or syntax** There is no specific special JavaScript feature or syntax used in this benchmark. **Other alternatives** If you were to create an object in JavaScript without using these two approaches, some alternative methods include: * Using the `new` keyword with a constructor function (e.g., `object = new MyConstructor()`) * Utilizing libraries like Lodash's `createObject()` or Object.create() * Employing other creative methods, such as creating an array and then assigning properties to it (`object = [{a: 1}];`) However, these alternatives are not part of the original benchmark and may not be relevant to the specific comparison being made. The MeasureThat.net website provides a useful resource for understanding how different JavaScript techniques and libraries affect performance. By comparing these two approaches, users can gain insights into the trade-offs between object creation methods in JavaScript.
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