Benchmark: ?: vs && and || operators

Script Preparation code:

var a = 5, b = 4;

Tests:

ternary operator
var c = a % 2 === 0 ? "even" : "odd";
&& and ||
var d = b % 2 && "odd" || "even";

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
ternary operator
&& and \|\|

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):

LLMs can make mistakes. Check important info.

Let's break down the provided JSON benchmark data.

**Benchmark Definition**

The `Name` field represents the name of the benchmark, which is "?: vs && and || operators". This suggests that the test case compares three different operator types: conditional (?:), logical AND (&&), and logical OR (||).

**Script Preparation Code and Html Preparation Code**

The `Script Preparation Code` section defines two variables, `a` and `b`, with values of 5 and 4, respectively. The `Html Preparation Code` is empty.

This setup allows the benchmark to run multiple iterations of a simple conditional statement or logical operation on these variables, which are likely used as example inputs for the tests.

**Individual Test Cases**

There are two test cases:

1. **Ternary Operator**

The benchmark definition is `var c = a % 2 === 0 ? "even" : "odd";`. This defines a simple ternary operator that checks if the remainder of dividing `a` by 2 is even (i.e., leaves no remainder). If true, it returns the string `"even"`, otherwise, it returns `"odd"`.

The purpose of this test case is to measure the performance difference between using a conditional expression versus a traditional if-else statement.

2. **Logical AND and Logical OR**

The benchmark definition is `var d = b % 2 && "odd" || "even";`. This defines an example that uses logical operators (&& for AND and || for OR). The expression inside the parentheses, `b % 2`, evaluates to either true (if `b` is odd) or false (if `b` is even).

The purpose of this test case is likely similar to the first one: comparing performance between two different logical operator approaches.

**Pros and Cons**

For each test case:

* **Ternary Operator**: Pros - concise, readable, and often preferred for simple conditional expressions. Cons - may not be as performant due to its nature (evaluating a boolean expression).
* **Logical AND and Logical OR**: Pros - can be more readable in certain situations, but might not be as idiomatic or widely supported as traditional logical operators. Cons - may lead to performance issues if the inner condition is often false.

**Other Considerations**

When comparing these different approaches:

* **Readability vs. Performance**: The choice between a ternary operator and logical AND/OR can depend on the specific requirements of your application, such as maintaining code readability or optimizing for performance.
* **Browser Support**: Different browsers may handle each operator differently. For example, some older browsers might not support logical operators like && and ||.
* **ES Features**: This benchmark does not explicitly test ES features like template literals (which could be relevant if the script preparation code included them). However, new benchmarks can always add more features to include.

**Alternatives**

Other alternatives for comparing conditional statements or logical operations could include:

* Using traditional if-else statements instead of ternary operators
* Comparing performance with other logical operators like in, not, or (less common)
* Considering the use of switch statements
* Evaluating different compiler optimizations (if applicable)

Latest run results:

Run details: (Test run date: 5 hours ago)

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.1 Mobile/15E148 Safari/604.1

Browser/OS: Mobile Safari 18 on iOS 18.1

View result in a separate tab

Test name	Executions per second
ternary operator	22941236.0 Ops/sec
&& and \|\|	20889048.0 Ops/sec

Related benchmarks:

?: vs && and || operators (version: 0)

Comparing performance of: ternary operator vs && and ||

Created: 4 years ago by: Registered User

Jump to the latest result

ternary operator

&& and ||

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 26 days ago):