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";

Historical Performance Data aggregated from 14 community runs

Desktop Results:

Chrome 14 runs

ternary operator

27.9M/s

&& and ||

27.6M/s

View exact numbers

✓ ternary operator: 27,917,616 ops/sec
• && and ||: 27,627,150 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

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

Latest run results:

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

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36 Edg/140.0.0.0

Browser/OS: Chrome 140 on Windows

View result in a separate tab

ternary operator

182.9M/s

&& and ||

171.3M/s

View exact numbers

Test name	Executions per second
✓ ternary operator	182,917,952 Ops/sec
&& and \|\|	171,304,192 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 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)

?: vs && and || operators (version: 0) Benchmark.js

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

Created: 6 years ago by: Registered User

Go to the latest result

ternary operator

&& and ||

Historical Performance Data aggregated from 14 community runs

Desktop Results:

Chrome 14 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

?: vs && and || operators (version: 0) Benchmark.js

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

Created: 6 years ago by: Registered User

Go to the latest result

ternary operator

&& and ||

Historical Performance Data aggregated from 14 community runs

Desktop Results:

Chrome 14 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

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

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