Benchmark: uuid things - MeasureThat.net

Tests:

original
function uuidv4() { return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8); return v.toString(16); }); } console.log(uuidv4())
es6 + crypto
function uuidv4() { return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c => (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16) ) } console.log(uuidv4());

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
original
es6 + crypto

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

**Overview**

MeasureThat.net is a website that allows users to create and run JavaScript microbenchmarks. The benchmarking process involves testing different approaches to measure the performance of specific JavaScript functions or algorithms.

**Benchmark Definition JSON**

The provided Benchmark Definition JSON represents a simple benchmark with two test cases:

```json
{
  "Name": "uuid things",
  "Description": null,
  "Script Preparation Code": null,
  "Html Preparation Code": null
}
```

This JSON defines the overall settings for the benchmark, including its name and description.

**Individual Test Cases**

The individual test cases are defined in the following JSON array:

```json
[
  {
    "Benchmark Definition": "function uuidv4() {\r\n  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\r\n    var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);\r\n    return v.toString(16);\r\n  });\r\n}\r\n\r\nconsole.log(uuidv4())",
    "Test Name": "original"
  },
  {
    "Benchmark Definition": "function uuidv4() {\r\n  return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>\r\n    (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)\n  )\r\n}\r\n\r\nconsole.log(uuidv4());",
    "Test Name": "es6 + crypto"
  }
]
```

These test cases define two different implementations of the `uuidv4` function:

1. **Original implementation**: This is a simple implementation that generates a UUID using a basic algorithm.
2. **ES6 + Crypto implementation**: This implementation uses the `crypto` module to generate a cryptographically secure random number, which is then used to generate the UUID.

**Options Compared**

The two test cases compare the performance of different approaches to generating UUIDs:

* **Simple string manipulation vs. cryptographically secure random number generation**

**Pros and Cons**

1. **Simple string manipulation**:
	* Pros: Easy to understand and implement, no dependencies on external libraries.
	* Cons: Not suitable for cryptographic purposes, may be vulnerable to predictable patterns.
2. **ES6 + Crypto implementation**:
	* Pros: Provides cryptographically secure random number generation, suitable for high-security applications.
	* Cons: Requires an additional library (`crypto`) and may introduce complexity.

**Library Used**

The `crypto` library is used in the ES6 + Crypto implementation to generate a cryptographically secure random number. This library provides functions for generating random numbers, hashing data, and performing other cryptographic operations.

**Special JS Feature or Syntax**

No special JavaScript features or syntax are used in these test cases.

**Other Alternatives**

If you wanted to test alternative approaches to generating UUIDs, you could consider the following options:

* Using a different library or implementation, such as `uuid` or `node-uuid`.
* Implementing your own UUID generation algorithm using a different approach.
* Testing the performance of other programming languages or frameworks that support UUID generation.

Note that these alternatives would require significant changes to the benchmark definition and test cases.

Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0

Browser/OS: Firefox 72 on Windows

View result in a separate tab

Test name	Executions per second
original	54911.0 Ops/sec
es6 + crypto	21058.9 Ops/sec

Related benchmarks:

uuid things (version: 0)

Comparing performance of: original vs es6 + crypto

Created: 6 years ago by: Guest

Jump to the latest result

original

es6 + crypto

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):