Benchmark: Test assignment with double negotiation

Tests:

!!
!!undefined
assigment
const a = false

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
!!
assigment

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):

LLMs can make mistakes. Check important info.

Let's break down what's being tested on MeasureThat.net.

The provided JSON represents a benchmark with two individual test cases:

1. `!!` (double exclamation marks)
2. `const a = false`

**Options compared:**

In this context, "options" refers to the different ways of evaluating these expressions. The main difference lies in how JavaScript handles operator precedence and null/undefined checks.

For `!!`, there are two options:

* **Short-circuiting evaluation**: This is the default behavior for logical operators like `!!` in JavaScript. It evaluates the expression inside the parentheses first and then applies the boolean negation.
	+ Pros: Faster execution, as it avoids unnecessary computations.
	+ Cons: May not always produce the expected result if the inner expression has side effects or depends on external conditions.
* **Non-short-circuiting evaluation**: This option would evaluate the entire expression without considering short-circuiting rules. It's equivalent to using parentheses around the inner expression, e.g., `( !! )`.
	+ Pros: Guarantees consistent results in certain scenarios, especially when working with complex expressions.
	+ Cons: Slower execution due to unnecessary computations.

For `const a = false`, there are two options:

* **Assignment**: This option executes the assignment statement immediately, assigning `false` to `a`. The expression after the assignment is discarded.
	+ Pros: Faster execution, as it avoids creating a temporary variable or evaluating an unnecessary expression.
	+ Cons: May not be desirable if the intention was to use the value of the expression for further processing.
* **Expression**: This option evaluates the entire expression before assigning the result to `a`. It creates a temporary variable and discards the original expression.
	+ Pros: Allows reusing the value of the expression, making it more flexible in certain scenarios.
	+ Cons: Slower execution due to the creation of a temporary variable.

**Other considerations:**

* The use of `!!` is likely intended to test the behavior of logical operators in JavaScript. The short-circuiting evaluation is generally faster and more efficient but may not always produce the expected result.
* The `const a = false` expression tests how JavaScript handles assignment statements with expressions on the right-hand side.

**Other alternatives:**

If you were to write a similar benchmark, you could consider adding additional test cases or variations, such as:

* Using different operators (e.g., `&&`, `||`, `===`)
* Adding more complex expressions or conditional statements
* Including tests for edge cases, like NaN or Infinity values

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/116.0.0.0 Safari/537.36

Browser/OS: Chrome 116 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
!!	13910089.0 Ops/sec
assigment	858827584.0 Ops/sec

Related benchmarks:

Test assignment with double negotiation (version: 0)

Comparing performance of: !! vs assigment

Created: one year ago by: Guest

Jump to the latest result

!!

assigment

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one month ago):