Benchmark: Date Math, 1 - MeasureThat.net

Script Preparation code:

let startDate = new Date();

Tests:

Using Math
const getNextMonth = (startDate) => { let current; if (startDate.getMonth() == 11) { current = new Date(startDate.getFullYear() + 1, 0, 1); } else { current = new Date(startDate.getFullYear(), startDate.getMonth() + 1, 1); } return current.getMonth(); }; let startDate = new Date(); getNextMonth(startDate);
Using Date Object
const outputDate = (date, output = 'month') => { switch (output) { default: case 'month': return date.getMonth(); case 'fulldate': return date; case 'year': return date.getFullYear(); } }; const changeMonth = (current = new Date(), change) => { if (change === 0) return current; const unformatted = new Date(current).setMonth(current.getMonth() + change); const formatted = new Date(unformatted); return formatted; }; const getNextMonth = (current = new Date(), output = 'month') => { const nextMonth = changeMonth(current, 1); return outputDate(nextMonth, output); }; let startDate = new Date(); getNextMonth(startDate)
Small Date Object
const changeMonth = (current, change) => { if (change === 0) return current; const unformatted = new Date(current).setMonth(current.getMonth() + change); return new Date(unformatted); }; const getNextMonth = (current) => { return changeMonth(current, 1).getMonth() }; let startDate = new Date(); getNextMonth(startDate)
Even smaller Date Object
const getNextMonth = (current) => { const unformatted = new Date(current).setMonth(current.getMonth() + 1) return new Date(unformatted).getMonth() }; let startDate = new Date(); getNextMonth(startDate)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Using Math
Using Date Object
Small Date Object
Even smaller Date Object

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):

LLMs can make mistakes. Check important info.

Measuring the performance of different approaches to calculate the next month in JavaScript is an interesting task.

**Overview**

The benchmark tests four different approaches to calculate the next month:

1. **Using Math**: This approach uses the `getMonth()` method to get the current month, and then adds 1 to it to get the next month.
2. **Using Date Object**: This approach creates a new date object with the same date as the input date, but sets the month to the next month using the `setMonth()` method.
3. **Small Date Object**: This approach uses a smaller date object to achieve the same result as the previous approach.
4. **Even Smaller Date Object**: This is similar to the Small Date Object approach, but even more concise.

**Options Compared**

The benchmark compares the performance of these four approaches on different types of devices and browsers:

* Device Platform: Desktop
* Operating System: Windows

**Pros and Cons of Each Approach**

1. **Using Math**:
	* Pros: Simple and easy to understand.
	* Cons: May not be as efficient as other approaches, especially for large dates.
2. **Using Date Object**:
	* Pros: More efficient than the Using Math approach, especially when dealing with large dates.
	* Cons: Requires creating a new date object, which can be overhead.
3. **Small Date Object**:
	* Pros: Even more efficient than the Using Date Object approach.
	* Cons: May not be as easy to understand for developers who are not familiar with this syntax.
4. **Even Smaller Date Object**:
	* Pros: Very concise and efficient.
	* Cons: May be difficult to understand for developers who are not familiar with this syntax.

**Library and Syntax Used**

None of the approaches use any external libraries or JavaScript features other than what is built into the language.

**Special JS Feature or Syntax**

The Small Date Object approach uses a unique syntax that creates a new date object by setting the month directly. This syntax is specific to older versions of JavaScript (before ECMAScript 2015) and may not be supported in modern browsers.

**Other Alternatives**

If none of these approaches were considered, other alternatives could include:

* Using a library like Moment.js or Luxon, which provide efficient date manipulation functions.
* Implementing a custom date calculation function using bitwise operations or other low-level techniques.

However, these alternatives may not be as efficient or easy to use as the benchmarked approaches.

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Browser/OS: Chrome 107 on Windows

View result in a separate tab

Test name	Executions per second
Using Math	2398260.8 Ops/sec
Using Date Object	1716883.1 Ops/sec
Small Date Object	1658333.9 Ops/sec
Even smaller Date Object	1747625.9 Ops/sec

Related benchmarks:

Date Math, 1 (version: 0)

Comparing performance of: Using Math vs Using Date Object vs Small Date Object vs Even smaller Date Object

Created: 3 years ago by: Registered User

Jump to the latest result

Using Math

Using Date Object

Small Date Object

Even smaller Date Object

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 27 days ago):