Benchmark: Date.parse vs custom

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Script Preparation code:

var dateString = '2000-01-25';

function parseDate(str) {
  const dateValues = str.split('-').map(_.parseInt);

  return new Date(dateValues[0], dateValues[1] - 1, dateValues[2]);
}

Tests:

Date.parse
var parsedDate = new Date(Date.parse(dateString));
custom
var parsedDate = parseDate(dateString);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Date.parse
custom

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**Benchmark Definition**

The provided JSON represents a benchmark definition, which outlines the setup and purpose of the test. In this case:

* The **Name** is "Date.parse vs custom", indicating that it compares the performance of using `Date.parse()` versus creating a custom parsing function.
* The **Description** field is empty, suggesting that no additional context or explanation is provided for this benchmark.
* The **Script Preparation Code** defines two functions: `parseDate(str)`, which takes a date string as input and returns a Date object, and the built-in `Date.parse(dateString)` function. This code allows users to easily compare these two approaches.

**Options Compared**

The benchmark compares the performance of:

1. Using `Date.parse(dateString)`
2. Creating a custom parsing function (`parseDate(str)`)

These options are compared in terms of execution time, which is measured using the number of executions per second (ExecutionsPerSecond).

**Pros and Cons**

* **Using `Date.parse(dateString)`**:
	+ Pros: Simple and straightforward, widely supported by browsers.
	+ Cons: May not be suitable for all date formats or edge cases.
* **Creating a custom parsing function (`parseDate(str)`)**:
	+ Pros: Allows for more control over the parsing process and can handle specific date formats or requirements.
	+ Cons: Requires more development effort, may introduce additional overhead.

**Library Used**

The benchmark includes Lodash.js, a popular JavaScript utility library. The `lodash.min.js` file is loaded via an HTML script tag, which provides a convenient way to include the library in the test.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax used in this benchmark. Both approaches rely on standard JavaScript functionality.

**Other Alternatives**

If you want to explore alternative approaches for date parsing, consider the following options:

1. **Moment.js**: A popular date and time library that provides more advanced features than `Date.parse()`.
2. **ISO 8601 parsing**: Using the `Intl.DateTimeFormat` API or a custom implementation to parse dates according to the ISO 8601 standard.
3. **Regular expressions**: Using regex patterns to extract date components from strings.

Keep in mind that each approach has its pros and cons, and the choice ultimately depends on your specific requirements and constraints.

Now, when you run this benchmark, you'll have a better understanding of the trade-offs between using `Date.parse()` versus creating a custom parsing function.

Related benchmarks:

Date.parse vs custom (version: 0)

Comparing performance of: Date.parse vs custom

Created: 8 years ago by: Guest

Jump to the latest result

Date.parse

custom

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):