Benchmark: dfasdfsdfasdf - MeasureThat.net

Tests:

Boolean(undefined)
Boolean(undefined)
!!undefined
!!undefined
Boolean(null)
Boolean(null)
!!null
!!null

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Boolean(undefined)
!!undefined
Boolean(null)
!!null

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and its test cases to understand what's being tested.

**Benchmark Definition**
The `Benchmark Definition` is a JSON object that defines the benchmark. It seems that there are no actual benchmarks defined in this case, only a script preparation code and html preparation code that are empty (null). This suggests that the website allows users to create their own custom benchmarks using JavaScript.

**Test Cases**
There are four test cases:

1. `Boolean(undefined)`
2. `!!undefined`
3. `Boolean(null)`
4. `!!null`

These test cases appear to be testing different JavaScript operators related to boolean values and null/undefined values. Here's a brief explanation of each test case:

* `Boolean(undefined)`: Tests the behavior of the `Boolean()` function when passed an undefined value.
* `!!undefined`: Tests the behavior of the double-bang operator (`!!`) when applied to an undefined value.
* `Boolean(null)`: Tests the behavior of the `Boolean()` function when passed a null value.
* `!!null`: Tests the behavior of the double-bang operator (`!!`) when applied to a null value.

**Options being compared**
The test cases are comparing different JavaScript operators:

* The `Boolean()` function
* The double-bang operator (`!!`)

These operators have different behaviors and performance characteristics, which are being measured in this benchmark.

**Pros and Cons of each approach**

1. **Boolean() function**: This function is a built-in JavaScript function that returns a boolean value based on the input. It's a simple and straightforward way to test boolean values.
	* Pros: Easy to implement, provides a clear result.
	* Cons: May not be optimized for performance, can lead to false positives or negatives depending on the implementation.
2. **Double-bang operator (!!)**: This operator is used to coerce a value to a boolean value. It's often used in conditional statements and loops.
	* Pros: Provides a simple way to test boolean values, can be optimized for performance.
	* Cons: May lead to unexpected behavior if not used carefully, can result in slower execution times due to the overhead of the operator.

**Library usage**
There doesn't seem to be any libraries being used in these test cases. However, it's worth noting that some JavaScript engines may use optimizations or special handling for certain operators or functions that are built into the language (e.g., `Boolean()`).

**Special JS features or syntax**
None of the provided test cases use any special JavaScript features or syntax.

**Other alternatives**

If you were to create a custom benchmark, you could consider using other approaches, such as:

* Using a testing framework like Jest or Mocha to write and run tests.
* Measuring the execution time of different algorithms or data structures.
* Testing for specific error cases, such as NaN (Not a Number) values or infinite loops.

Keep in mind that the choice of approach depends on the specific requirements and goals of your benchmark.

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36

Browser/OS: Chrome 118 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Boolean(undefined)	8956371.0 Ops/sec
!!undefined	17821898.0 Ops/sec
Boolean(null)	17876766.0 Ops/sec
!!null	1010826560.0 Ops/sec

Related benchmarks:

dfasdfsdfasdf (version: 0)

Comparing performance of: Boolean(undefined) vs !!undefined vs Boolean(null) vs !!null

Created: one year ago by: Guest

Jump to the latest result

Boolean(undefined)

!!undefined

Boolean(null)

!!null

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):