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+new Date() vs Date.now()
(version: 0)
Comparing performance of:
+new Date() vs Date.now()
Created:
2 years ago
by:
Guest
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Tests:
+new Date()
+new Date()
Date.now()
Date.now()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
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Test case name
Result
+new Date()
Date.now()
Fastest:
N/A
Slowest:
N/A
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Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into the explanation of the provided benchmark. **Overview** The test compares two different ways to get the current timestamp in JavaScript: using the `Date` object with the `new` keyword (`+new Date()`) versus using the `now()` method (`Date.now()`). **Options Compared** There are two options being compared: 1. **`+new Date()`**: This method creates a new `Date` object and returns its value as a string. It's essentially equivalent to calling `new Date()`. 2. **`Date.now()`**: This method returns the number of milliseconds since the Unix Epoch (January 1, 1970) as an integer. **Pros and Cons** * **`+new Date()`**: * Pros: Can be used in arithmetic expressions and is commonly used for date-related calculations. * Cons: Creates a new `Date` object each time it's called, which can lead to increased memory usage and slower performance compared to the other option. * **`Date.now()`**: * Pros: More efficient and faster than creating a new `Date` object. It also doesn't require parsing or formatting. * Cons: Returns milliseconds since the Unix Epoch, so it may not be suitable for all use cases (e.g., calculating days or years). **Library** There is no external library being used in this benchmark. **Special JS Features/Syntax** None are mentioned in the provided code snippets.
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Date.now() vs new Date() vs performance.now()
Date.now() - Date.now() vs new Date() - new Date()
Date.now() vs. now()
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