Benchmark: Date parse vs new Date inside sort

Script Preparation code:

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Tests:

Date.parse
array.sort((prev, next) => Date.parse(next.created_at) - Date.parse(prev.created_at))
new Date
array.sort((prev, next) => new Date(next.created_at) - new Date(prev.created_at))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Date.parse
new Date

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.75 Safari/537.36

Browser/OS: Chrome 73 on Mac OS X 10.14.3

View result in a separate tab

Test name	Executions per second
Date.parse	15866.7 Ops/sec
new Date	12310.6 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):

LLMs can make mistakes. Check important info.

A puzzle!

It appears that the data is in JSON format, and it contains an array of test cases with metadata about them.

The question seems to be asking for help with sorting an array of dates in JavaScript. To solve this, I would need to identify which test case is relevant to this task.

From the "Individual test cases" section, I notice that one of the test cases has a "Benchmark Definition" like `array.sort((prev, next) => Date.parse(next.created_at) - Date.parse(prev.created_at))`. This suggests that the relevant test case is related to sorting dates using `Date.parse`.

Similarly, another test case has a "Benchmark Definition" like `array.sort((prev, next) => new Date(next.created_at) - new Date(prev.created_at))`, which is similar but uses the `new Date()` constructor instead of `Date.parse`.

Without more information about the specific task or requirements, I'll assume that the goal is to sort an array of dates in ascending order using either `Date.parse` or `new Date()`.

Here's a sample code snippet that sorts an array of dates using both methods:

```javascript
const dates = [
  '2018-05-08T13:05:50.533',
  '2017-11-01T16:59:33.335',
  '2018-07-19T12:42:57.920',
  // add more dates here...
];

// Sort using Date.parse
const sortedDatesParse = dates.sort((a, b) => Date.parse(a) - Date.parse(b));

// Sort using new Date()
const sortedDatesNewDate = dates.sort((a, b) => new Date(a) - new Date(b));

console.log(sortedDatesParse);
console.log(sortedDatesNewDate);
```

Please note that this is a simple example, and you may need to adjust it according to your specific requirements.

Let me know if I'm correct in assuming the goal is to sort dates using `Date.parse` or `new Date()`, and if there's anything else I can help with!

Related benchmarks:

Date parse vs new Date inside sort (version: 0)

Sorting by date inside complex data

Comparing performance of: Date.parse vs new Date

Created: 5 years ago by: Guest

Jump to the latest result

Date.parse

new Date

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 2 months ago):