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

Latest run results:

No previous run results

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

Related benchmarks:

uuid things (version: 0)

Comparing performance of: original vs es6 + crypto

Created: 7 years ago by: Guest

Jump to the latest result

original

es6 + crypto

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):