Benchmark: && vs ternary - MeasureThat.net

Tests:

&& case
const foo = null const bar = foo && "mip" console.log(bar)
ternary case
const foo = null const bar = foo ? "mip" : null console.log(bar)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
&& case
ternary case

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

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

**Benchmark Overview**

The benchmark is comparing two ways to implement conditional expressions in JavaScript: the logical AND operator (`&&`) and the ternary operator (`? :`).

**Options Compared**

There are two test cases:

1. **&& case**: This test case uses the logical AND operator to determine whether `foo` is truthy or falsy, and then assigns a string value to `bar`. If `foo` is falsy, `bar` will be assigned `null`.
2. **Ternary case**: This test case uses the ternary operator (`? :`) to provide two alternatives for the value of `bar`. The first alternative is a string `"mip"` if `foo` is truthy, and the second alternative is `null` if `foo` is falsy.

**Pros and Cons**

Both approaches have their pros and cons:

* **&& case**:
	+ Pros: Simple and straightforward.
	+ Cons: If `foo` is falsy, `bar` will be assigned `null`, which might not be the desired behavior in some cases.
* **Ternary case**:
	+ Pros: Provides a clear and explicit way to specify two alternatives for the value of `bar`.
	+ Cons: The syntax can be less readable for those who are not familiar with the ternary operator.

**Other Considerations**

In general, when choosing between these two approaches, consider the specific requirements of your use case. If you need a simple and straightforward way to implement conditional expressions, the `&&` case might be sufficient. However, if you need more control over the value assignment or want to make the code more readable for others, the ternary operator is a better choice.

**Library Usage**

There are no libraries used in this benchmark, so there's nothing to mention.

**Special JavaScript Features/Syntax**

This benchmark uses two special JavaScript features:

1. **Logical AND operator (`&&`)**: This operator is used to test whether both operands are truthy.
2. **Ternary operator (`? :`)**: This operator provides a concise way to specify two alternatives for an expression.

I hope this explanation helps!

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Windows

View result in a separate tab

Test name	Executions per second
&& case	251782.4 Ops/sec
ternary case	253734.2 Ops/sec

Related benchmarks:

&& vs ternary (version: 0)

Comparing performance of: && case vs ternary case

Created: 2 years ago by: Guest

Jump to the latest result

&& case

ternary case

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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