Benchmark: GetName - MeasureThat.net

Script Preparation code:

var arn = 'arn:aws:sns:ap-northeast-1:793672025628:TestTopic'

Tests:

split
arn.split(':').pop()
regex
arn.match(/:(.*)$/)[1]

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:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Safari/537.36

Browser/OS: Chrome 145 on Windows

View result in a separate tab

Test name	Executions per second
split	28620070.0 Ops/sec
regex	15572825.0 Ops/sec

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 MeasureThat.net, where JavaScript microbenchmarks come to life.

**Benchmark Definition JSON Explanation**

The provided Benchmark Definition JSON represents a test case for measuring the performance of two specific JavaScript operations: `split` and `regex`. The JSON defines:

1. **Name**: The name of the benchmark, which is not explicitly set in this example.
2. **Description**: An empty description, suggesting that no detailed explanation is required for this benchmark.
3. **Script Preparation Code**: A string literal representing the AWS SNS ARN (Amazon Simple Notification Service) with the `arn` variable assigned to it. This suggests that the benchmark involves working with ARNs, which might be related to cloud computing or AWS services.

**Options Compared**

The two benchmark options being compared are:

1. **`split`**: The `split()` method takes a string and splits it into an array of substrings based on a specified separator.
2. **`regex`**: A regular expression-based approach, which uses the `match()` method to search for a pattern in a string.

**Pros and Cons**

- **`split()`**:
	* Pros: Generally faster since it's a built-in JavaScript method with an optimized implementation.
	* Cons: May not be as flexible or powerful as regular expressions for complex string processing.
- **Regular Expressions (`regex`)**:
	+ Pros: More flexible, powerful, and often used in real-world applications for text processing.
	+ Cons: Can be slower due to the overhead of compiling and executing regex patterns.

**Other Considerations**

When choosing between these two approaches, consider the specific requirements of your use case. If you need to perform simple string splitting with a fixed separator, `split()` might be the better choice. However, if you require more complex text processing or flexibility in pattern matching, regular expressions are often a better fit.

**Library and Purpose**

The `match()` method is part of the JavaScript standard library, specifically within the `String.prototype` object. Its purpose is to search for a match between a string and a pattern, returning an array containing the matched substring(s) if found.

**Special JS Feature or Syntax**

There are no special features or syntax mentioned in this benchmark definition. Both `split()` and regular expressions use standard JavaScript functions and data structures.

**Alternative Benchmarking Frameworks**

MeasureThat.net is one of several online benchmarking platforms that allow you to create, run, and compare the performance of JavaScript microbenchmarks. Some other popular alternatives include:

* jsPerf (now retired)
* Browserbench
* Microbenchmarking.io

These tools provide similar functionality to MeasureThat.net, allowing you to create custom benchmarks and compare their performance on different browsers or platforms.

I hope this explanation helps software engineers understand the benchmark definitions and options being compared on MeasureThat.net!

Related benchmarks:

GetName (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

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