Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
dateTest
(version: 0)
Comparing performance of:
new vs existing
Created:
2 years ago
by:
Guest
Jump to the latest result
Tests:
new
const date = new Date() new Date()
existing
const date = new Date() new Date(date)
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
new
existing
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested, compared, and considered. **Benchmark Definition** The benchmark is defined by a JSON object with four properties: * `Name`: The name of the benchmark, which is "dateTest". * `Description`: An empty string, indicating that no description is available. * `Script Preparation Code`: An empty string, meaning no script preparation code needs to be executed before running the benchmark. * `Html Preparation Code`: Another empty string, implying that no HTML preparation code is required. This suggests that the benchmark is focused on measuring the performance of JavaScript's `Date` object creation. The lack of any setup or initialization code implies that the benchmark aims to isolate the time spent creating a new `Date` instance. **Individual Test Cases** The benchmark consists of two test cases: 1. **new**: This test case measures the time taken to create a new `Date` object using the syntax `const date = new Date()`. 2. **existing**: This test case measures the time taken to create a new `Date` object by passing an existing `Date` object as an argument, using the syntax `const date = new Date(date)`. **Comparison of Options** The two test cases compare the performance of creating a new `Date` object in two ways: * **new**: Creating a new instance directly. * **existing**: Reusing an existing instance and passing it to the constructor. **Pros and Cons** Here are some pros and cons of each approach: * **new**: + Pros: Simple and straightforward, likely to be the most commonly used method. + Cons: May involve more overhead due to the creation of a new object, as opposed to reusing an existing one. * **existing**: + Pros: Can potentially reduce overhead by reusing an existing instance, which may have already been created and warmed up. + Cons: May require additional memory allocation or copying if the existing instance is not properly serialized. **Library Usage** The benchmark uses the `Date` object from JavaScript's built-in library. The `Date` class provides a convenient way to work with dates and times in JavaScript. **Special JS Feature/Syntax** None of the provided code snippets use any special JavaScript features or syntax beyond standard ECMAScript 2020 (ES2020) language features. However, it's worth noting that modern JavaScript environments like Node.js often have additional features and optimizations that may affect benchmark results. **Other Alternatives** If you wanted to explore alternative approaches or modifications to the original benchmark, some potential alternatives could include: * Creating multiple instances with different options (e.g., `const date = new Date('UTC')`). * Using a loop to create multiple instances and measuring the average execution time. * Adding noise or variations to the input data (e.g., using random dates) to simulate real-world scenarios. * Comparing performance across different JavaScript engines, interpreters, or virtual machines. Keep in mind that modifying an existing benchmark may require careful consideration of factors like consistency, bias, and reliability.
Related benchmarks:
Intl.DateTimeFormat
new Date from UNIX timestamp (ms) vs new Date from ISO string
Date() vs Date(YY,MM,DD,hh,mm)
Date comparison Date.now vs new Date
JS Check Valid Date String
Comments
Confirm delete:
Do you really want to delete benchmark?