Benchmark: Remove milliseconds test

Script Preparation code:

var date = new Date()

Tests:

Split
let formatted = date.toISOString().split('.')[0] + 'Z'
Regex
let formatted = date.toISOString().replace(/\.\d+/, "");

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Split
Regex

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's dive into the explanation of what's being tested in this benchmark.

**Overview**

The test case measures how quickly JavaScript can process and format dates using two different approaches:

1. **Split**: This approach uses the `toISOString()` method to get a date string, and then splits it at the decimal point (`.`) to extract the year.
2. **Regex**: This approach uses a regular expression (`/\\.\\d+/`) to replace the decimal part of the date string with an empty string.

**Options Compared**

The benchmark is comparing two different approaches:

* `Split`: Uses the `toISOString()` method and splits the date string at the decimal point.
* `Regex`: Uses a regular expression to remove the decimal part of the date string.

**Pros and Cons**

**Split:**

Pros:

* Simple and easy to understand
* Fast execution time (faster than regex)

Cons:

* May not work correctly for dates with no decimal part
* Can be sensitive to locale settings

**Regex:**

Pros:

* More flexible and robust, works correctly for dates with no decimal part
* Less sensitive to locale settings

Cons:

* Slower execution time compared to split
* May require more code and maintenance

**Library Usage**

There is no explicit library usage in this benchmark. However, the `Date` object used in both approaches is a built-in JavaScript object that provides functionality for working with dates.

**Special JS Features/Syntax**

There are no special JS features or syntax used in this benchmark. The tests only rely on standard JavaScript functionality.

**Other Alternatives**

If you wanted to test these benchmarks, you could also consider using:

* Other date formatting libraries (e.g., Moment.js)
* Different approaches for removing the decimal part (e.g., using `Math.floor()`)

However, keep in mind that Moment.js is not used in this benchmark, and other approaches may have different performance characteristics.

**Notes**

It's worth noting that the `ExecutionsPerSecond` metric used in this benchmark measures the number of date formatting operations completed per second. This allows users to compare the performance of different approaches in a more meaningful way.

Related benchmarks:

Remove milliseconds test (version: 0)

Comparing performance of: Split vs Regex

Created: 4 years ago by: Guest

Jump to the latest result

Split

Regex

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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