Benchmark: true vs false - MeasureThat.net

Script Preparation code:

var test = 'test'

Tests:

true
if (test === 'test') return true; return false
false
if (!test === 'test') return false; return true

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
true
false

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

I'll break down the explanation into smaller sections to make it easier to understand.

**Benchmark Definition JSON**

The provided JSON represents a benchmark definition for a JavaScript microbenchmark. Here's what's being tested:

* The script preparation code is "var test = 'test';", which sets up a variable `test` with the value `'test'`.
* The HTML preparation code is empty (`null`), indicating that no HTML is being prepared for this benchmark.
* Two individual test cases are defined:
	+ The first test case checks if `test === 'test'`, and returns `true` if true, otherwise `false`.
	+ The second test case checks if `!test === 'test'`, which is equivalent to `test !== 'test'`. It returns `true` if the condition is false (i.e., `test !== 'test'`) and `false` otherwise.

**Options Compared**

The two options being compared are:

1. `test === 'test'`: This checks for an exact equality between the `test` variable and the string `'test'`.
2. `!test === 'test'`: This checks if the negation of the `test` variable is equal to the string `'test'`. This is equivalent to checking if `test` is not equal to `'test'`.

**Pros and Cons**

* **Exact Equality (`test === 'test'`)**:
	+ Pros: Simple and straightforward.
	+ Cons: May lead to performance issues due to the overhead of the equality check.
* **Negation-based Comparison (`!test === 'test'`)**:
	+ Pros: Can be faster than exact equality checks, as it avoids the overhead of a separate `!=` operation.
	+ Cons: May lead to unexpected behavior if not properly understood.

**Library Used**

There is no explicit library mentioned in the provided code. However, it's possible that some libraries are being used implicitly through the use of specific syntax or features (e.g., template literals).

**Special JS Feature/Syntax**

The benchmark uses a feature known as "template literals" (introduced in ECMAScript 2015). Template literals allow you to embed expressions inside string literals, making it easier to create dynamic strings.

For example:
```javascript
var test = 'test';
if (!test === 'test') return false; // Using template literal syntax
return true;
```
**Alternative Approaches**

Other alternatives for comparing values in JavaScript include:

1. `===` and `!==`: These are the standard equality and inequality operators, which compare both value and type.
2. `==` and `!=`: These are the standard equality and inequality operators with loose equality (e.g., comparing strings as numbers).
3. `===`-style comparisons with object properties (e.g., `obj.prop === 'value'`).

Related benchmarks:

true vs false (version: 0)

Comparing performance of: true vs false

Created: 3 years ago by: Guest

Jump to the latest result

true

false

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):