Benchmark: if - strict vs truthy/falsy

Script Preparation code:

 var a = true,
    b;

Tests:

strict
if (a === true) { b = true; } else { b = false } if (a === false) { b = true; } else { b = false; }
truthy/falsy
if (a) { b = true; } else { b = false; } if (!a) { b = true; } else { b = false; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
strict
truthy/falsy

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36

Browser/OS: Chrome 135 on Linux

View result in a separate tab

Test name	Executions per second
strict	6619210.5 Ops/sec
truthy/falsy	6684967.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark JSON and explain what's being tested.

**Benchmark Definition**

The benchmark is defined as follows:
```json
"Name": "if - strict vs truthy/falsy",
"Description": null,
"Script Preparation Code": "var a = true,\r\n    b;",
"Html Preparation Code": null
```
This benchmark tests the performance of JavaScript `if` statements with two different approaches:

1. **Strict equality** (`a === true`)
2. **Truthy/Falsy checks** (`a` or `!a`)

The script preparation code simply assigns a value to variables `a` and `b`.

**Individual Test Cases**

There are two test cases:
```json
[
    {
        "Benchmark Definition": "if (a === true) {\r\n  b = true;\r\n} else {\r\n  b = false\r\n}\r\n\r\nif (a === false) {\r\n  b = true;\r\n} else {\r\n  b = false;\r\n}",
        "Test Name": "strict"
    },
    {
        "Benchmark Definition": "if (a) {\r\n  b = true;\r\n} else {\r\n  b = false;\r\n}\r\n\r\nif (!a) {\r\n  b = true;\r\n} else {\r\n  b = false;\r\n}",
        "Test Name": "truthy/falsy"
    }
]
```
The first test case uses strict equality checks, while the second test case uses truthy/Falsy checks. The logic is as follows:

* If `a` is true, set `b` to true; otherwise, set it to false.
* If `a` is false, set `b` to true; otherwise, set it to false.

**Pros and Cons of Each Approach**

1. **Strict Equality**
	* Pros: more precise control over comparisons, avoids unexpected behavior due to implicit type coercion.
	* Cons: can be slower due to the additional comparison operation.
2. **Truthy/Falsy Checks**
	* Pros: faster, as it leverages the optimized `&&` and `||` operators.
	* Cons: may lead to unexpected behavior if not carefully considered.

**Library/Functionality Used**

None of the test cases use any external libraries or functions.

**Special JS Features/Syntax**

No special JavaScript features or syntax are used in these test cases. They rely solely on basic language constructs.

**Other Alternatives**

To measure the performance difference between strict equality and truthy/Falsy checks, alternative approaches could be explored:

* Using `==` instead of `===`
* Using bitwise operators (`&`, `|`) to emulate the behavior of `===`
* Using regex patterns to match both cases
* Implementing a custom comparison function

Keep in mind that these alternatives may not accurately represent the original intent and might lead to incorrect results.

**Benchmark Preparation Code**

The script preparation code is:
```javascript
var a = true, b;
```
This sets up two variables `a` and `b`, initialized with values `true` and an empty value, respectively.

Related benchmarks:

if - strict vs truthy/falsy (version: 0)

Comparing performance of: strict vs truthy/falsy

Created: 7 years ago by: Guest

Jump to the latest result

strict

truthy/falsy

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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