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Math random UUID vs crypto UUID
(version: 0)
Comparing performance of:
math.random vs crypto uuid
Created:
3 years ago
by:
Guest
Go to the latest result
Script Preparation code:
var uuid; var broofa = () => { return Math.random().toString() + Math.random().toString() }
Tests:
math.random
uuid = broofa()
crypto uuid
uuid = crypto.randomUUID()
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
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Test case name
Result
math.random
crypto uuid
Fastest:
N/A
Slowest:
N/A
Latest run results:
Run details:
(Test run date:
one month ago
)
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/151.0.0.0 Safari/537.36
Browser/OS:
Chrome 151 on Mac OS X 10.15.7
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=629653" width="100%" height="500px"></iframe>
math.random
3.1M/s
crypto uuid
787K/s
View exact numbers
Test name
Executions per second
✓
math.random
3,102,720 Ops/sec
crypto uuid
787,362 Ops/sec
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's break down the provided benchmark and explain what's being tested. **What is being tested?** The test compares two approaches to generating UUIDs (Universally Unique Identifiers): `Math.random()` and `crypto.randomUUID()`. The goal is to determine which method is faster. **Options compared:** There are two options being compared: 1. **`Math.random()`**: This method generates a pseudo-random number using the current time as a seed. 2. **`crypto.randomUUID()`**: This method uses a cryptographically secure pseudorandom number generator to generate a UUID. **Pros and Cons of each approach:** * `Math.random()`: Pros: + Fast and lightweight + Suitable for most use cases where high security is not required * Cons: + Not suitable for cryptographic purposes due to its pseudo-random nature + May produce predictable sequences in certain environments (e.g., same machine, same time of day) * `crypto.randomUUID()`: Pros: + Cryptographically secure and suitable for applications requiring high security + Generates a truly random UUID with a low chance of predictability * Cons: + Slower than `Math.random()` due to the cryptographic algorithm used + Requires additional dependencies (e.g., Node.js's `crypto` module) **Library and purpose:** In this benchmark, the `crypto` library is used. The `crypto.randomUUID()` function generates a cryptographically secure UUID that meets certain security standards. **Special JS feature or syntax: None mentioned in this benchmark** However, it's worth noting that both `Math.random()` and `crypto.randomUUID()` rely on JavaScript's internal algorithms for generating random numbers. **Other alternatives:** If you need to generate UUIDs frequently, you might also consider using external libraries like `uuid` (a popular library for generating UUIDs) or `random-uuid`. These libraries can provide more control over the generation process and are often faster than relying on JavaScript's built-in methods. Keep in mind that if high security is not a requirement, `Math.random()` may be sufficient. However, if you need to generate secure UUIDs, `crypto.randomUUID()` is a better choice.
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