Benchmark: Test Speed Test - MeasureThat.net

HTML Preparation code:

Long

Script Preparation code:

let flip = Math.random() < 0.5;
let x;

if (flip) 
{
	x = 100;
}
else
{
	x = 200;
}

Tests:

Trinaray
let flip = Math.random() < 0.5; let x = (Math.random() < 0.5) ? 100 : 200;
Mathy
let flip = Math.random() < 0.5; let x = (100 * +!!flip) + (100 * +!flip);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Trinaray
Mathy

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark and explain what's being tested, compared, and their pros and cons.

**Benchmark Overview**

The test case compares three different methods of setting values based on a binary test condition (i.e., true or false). The goal is to determine which method is the fastest.

**Methods Being Compared**

1. **Direct Assignment**: `let x = 100;` (or `let x = 200;`)
	* Pros: Simple, straightforward, and easy to read.
	* Cons: May involve unnecessary computations if not memoized or cached.
2. **Ternary Operator**: `let x = (Math.random() < 0.5) ? 100 : 200;`
	* Pros: More concise and expressive than direct assignment.
	* Cons: May be slower due to the ternary operator's syntax overhead.
3. **Bitwise Trick**: `let x = (100 * +!!flip) + (100 * +!flip);`
	* Pros: Very concise and potentially faster, as it leverages bitwise operations.
	* Cons: Less readable and more prone to errors due to its unusual syntax.

**Library Used**

There is no explicit library mentioned in the benchmark code. However, the `!!` operator used in the bitwise trick is a built-in JavaScript feature that converts a value to a boolean (true or false). It's often used for conditional statements, but its behavior can be unexpected if not used carefully.

**Special JS Feature**

The `!!` operator is an example of a special JavaScript feature. In this case, it's used to convert the result of `Math.random()` to a boolean value. This might be unfamiliar to some developers, and its usage should be handled with caution.

**Other Alternatives**

For setting values based on a binary test condition, other approaches could include:

* Using a switch statement or a lookup table
* Creating a function that takes the result of `Math.random()` as an argument
* Utilizing bitwise operations with different combinations (e.g., `let x = flip ? 100 : 200;` using the fact that `true` is equivalent to 1 and `false` is equivalent to 0)

**Benchmark Preparation Code**

The script preparation code includes two lines:
```javascript
let flip = Math.random() < 0.5;
let x;
```
This sets up a variable `flip` based on a random boolean value, and another variable `x` that will be assigned a value based on the test case.

**Html Preparation Code**

The html preparation code includes a single line:
```javascript
Long
```
However, this seems to be incomplete or unnecessary. It might be intended to include some kind of HTML element or content that's not shown in the provided benchmark code.

I hope this explanation helps!

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

Browser/OS: Chrome 56 on Linux

View result in a separate tab

Test name	Executions per second
Trinaray	2742540.2 Ops/sec
Mathy	5213226.0 Ops/sec

Related benchmarks:

Test Speed Test (version: 0)

Comparing the speed of 3 different methods of setting values based on a binary test condition.

Comparing performance of: Trinaray vs Mathy

Created: 7 years ago by: Guest

Jump to the latest result

Trinaray

Mathy

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):