Benchmark: Check boolean - MeasureThat.net

Script Preparation code:

var bFalse = false;
var sEmpty = '';
var sFilled = 'Foo';
var nZero = 0;
var nOne = 1;

Tests:

boolean
Boolean(bFalse) Boolean(sEmpty) Boolean(sFilled) Boolean(nZero) Boolean(nOne)
negation
!!bFalse !!sEmpty !!sFilled !!nZero !!nOne
equation
bFalse === true sEmpty === true sFilled === true nZero === true nOne === true

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
boolean
negation
equation

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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

LLMs can make mistakes. Check important info.

Let's break down the benchmark and explain what is tested, compared, and some considerations.

**Benchmark Definition JSON**

The benchmark definition JSON contains three test cases:

1. `Boolean`:
	* Tests the behavior of `Boolean()` function with different inputs (boolean values, empty string, filled string, zero, and one).
2. `Negation`:
	* Tests the behavior of double negation (`!!`) with different inputs (false, empty string, filled string, zero, and one).
3. `Equation`:
	* Tests the behavior of comparison operators (`===`) with different inputs (false, empty string, filled string, zero, and one).

**Comparison Options**

There are two main approaches to compare:

1. **Boolean()`**: This approach tests the explicit conversion of input values to booleans using the `Boolean()` function.
2. **Double Negation (`!!`)**: This approach tests the behavior of double negation, which can be ambiguous in some cases.

**Pros and Cons**

* **Boolean()**:
	+ Pros:
		- Explicitly converts inputs to booleans, avoiding potential issues with implicit conversions.
		- Can help catch bugs related to implicit boolean conversions.
	+ Cons:
		- May be slower than double negation due to the explicit conversion.
		- Can lead to unexpected behavior if not used carefully (e.g., `!!true === true`).
* **Double Negation (`!!`)**:
	+ Pros:
		- Can be faster than explicit boolean conversions.
		- Often used in JavaScript code, making it a common point of reference.
	+ Cons:
		- Ambiguous behavior if not used carefully (e.g., `!!true === true`).
		- May lead to unexpected behavior when dealing with certain data types or edge cases.

**Library and Special Features**

* No libraries are explicitly mentioned in the benchmark definition. However, some libraries may be used implicitly through dependencies.
* **Double Negation (`!!`)**: This is a special feature of JavaScript that allows for negating a value. It's not specific to `Boolean()` but rather a general syntax.

**Other Considerations**

* The benchmark tests the behavior of these approaches in different scenarios, including edge cases (e.g., empty strings and zeros).
* The use of `===` operator in the `Equation` test case is likely intended to check for strict equality, which may be important depending on the context.
* The benchmark uses Chrome 99 as a reference browser, which might indicate that this benchmark is more relevant to modern web development.

**Alternatives**

Other alternatives for comparing values or testing boolean behavior include:

1. Using `typeof` operator to check the type of a variable.
2. Implementing custom boolean conversion functions.
3. Using assertion libraries (e.g., Jest) that provide explicit control over comparisons and expectations.
4. Employing more advanced techniques, such as property value checking or equality testing frameworks.

Keep in mind that these alternatives might offer better performance, flexibility, or accuracy for specific use cases but may also introduce additional complexity or dependencies.

Related benchmarks:

Check boolean (version: 0)

Comparing performance of: boolean vs negation vs equation

Created: 4 years ago by: Guest

Jump to the latest result

boolean

negation

equation

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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