Benchmark: dates.map(() => crypto.randomUUID())

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

function uuidv4() {
  let pattern = /[xy]/g;
  return "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(pattern, (match, param, param$1) => {
    let r = Math.random() * 16.0 | 0;
    let v = match === "x" ? r : r & 3 | 8;
    return v.toString(16);
  });
}

var dates = Array.from({length: 200}, () => new Date())

Tests:

uuidv4
dates.map(() => crypto.randomUUID())
random
dates.map(() => uuidv4())

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
uuidv4
random

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36

Browser/OS: Chrome 140 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
uuidv4	3646.0 Ops/sec
random	5762.2 Ops/sec

Autogenerated LLM Summary (model gpt-4o-mini, generated 7 months ago):

LLMs can make mistakes. Check important info.

The benchmark defined in the provided JSON focuses on generating UUIDs (Universally Unique Identifiers) using two different approaches: one utilizing the built-in `crypto.randomUUID()` method and the other utilizing a custom implementation `uuidv4()`.

### Benchmark Overview

#### Options Compared:
1. **`crypto.randomUUID()`**
   - This is a web API method introduced in modern browsers that generates a random UUID (version 4) in a standardized format. 
   
2. **Custom `uuidv4()` Function**
   - This function creates UUIDs using a combination of `Math.random()` and string replacement, thus emulating how UUIDs are typically generated.

### Performance Results
From the benchmark results, we see the following executions per second for each option:
- **`uuidv4`:** 3646.01 executions per second
- **`random`:** 5762.20 executions per second

### Advantages and Disadvantages

#### `crypto.randomUUID()`
**Pros:**
- *Standardization:* Generates true UUIDs adhering to the RFC 4122 standard.
- *Security:* Utilizes cryptographic principles, thus providing better randomness and collision resistance.
- *Simplicity:* Easy to call and use without needing to define additional functions or logic.

**Cons:**
- *Browser Support:* Limited to modern browsers. Older browsers may not support this method, possibly requiring polyfills or alternative implementations.
  
#### Custom `uuidv4()`
**Pros:**
- *Flexibility:* Can be modified or extended if custom behavior for UUID generation is necessary.
- *Legacy Support:* Can work in environments where `crypto.randomUUID()` is unsupported.

**Cons:**
- *Quality of Randomness:* Relies on `Math.random()` which is not cryptographically secure and can produce predictable results, making it less suitable for generating unique identifiers in sensitive applications.
- *Not RFC Compliant:* The generated UUIDs may not conform to the UUID standard, which could lead to issues if interoperability with UUID-based systems is required.

### Other Considerations
1. **Use Case Context:** If the UUIDs are being used in a high-security context (like session tokens), it is crucial to utilize cryptographically secure methods such as `crypto.randomUUID()`. Conversely, if UUIDs are being generated in non-sensitive contexts (like temporary identifiers in client-side applications), the `uuidv4()` function could suffice.
  
2. **Performance:** The benchmark indicates that `crypto.randomUUID()` is faster in this context, which might influence decision-making in performance-critical applications.

### Alternatives
- **Libraries:** 
  - Libraries such as `uuid` in Node.js or other third-party libraries can provide additional flexible functionality for UUID generation beyond the options presented.
  
- **Random Functions:** Different random number generation approaches could be utilized, but they should be chosen based on the required quality (cryptographic vs. non-cryptographic).

Ultimately, the choice between these two methods for generating UUIDs should be informed by factors such as security, compliance with standards, performance requirements, and target environment (browser compatibility).

Related benchmarks:

dates.map(() => crypto.randomUUID()) (version: 1)

Comparing performance of: uuidv4 vs random

Created: 7 months ago by: Guest

Jump to the latest result

uuidv4

random

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model gpt-4o-mini, generated 7 months ago):