Benchmark: array.includes vs if && vs ternary if &&

Tests:

if &&
const foo = 'foo'; if (foo !== 'bar' && foo !== 'baz') { return 0; } return 1;
Array.includes
const foo = 'foo'; return ['bar', 'baz'].includes(foo) ? 1 : 0;
Ternary if
const foo = 'foo'; return foo !== 'bar' && foo !== 'baz'? 0 : 1;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
if &&
Array.includes
Ternary if

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 provided benchmark and explain what's being tested, along with the pros and cons of different approaches.

**Benchmark Definition**

The test case is designed to compare three different ways of checking if a string `foo` is not equal to 'bar' or 'baz'. The options being compared are:

1. **if &&**: Using an if statement with two conditions joined by the logical AND operator (`&&`).
2. **Array.includes**: Using the `includes()` method on an array containing the string.
3. **Ternary if &&**: A ternary operator followed by another if statement with the same conditions as the first option.

**Pros and Cons**

1. **if &&**:
	* Pros: Simple, easy to read, and widely supported.
	* Cons: May have performance overhead due to the repeated checks.
2. **Array.includes**:
	* Pros: Efficient, as it only iterates over the array once.
	* Cons: Requires an additional array to be created, which may not be desirable in all cases.
3. **Ternary if &&**:
	* Pros: Combines two operations into one, potentially reducing overhead.
	* Cons: May be less readable than a traditional if statement, and its performance is similar to the other options.

**Library Usage**

None of the provided benchmark definitions use any external libraries or dependencies.

**Special JavaScript Features**

None of the test cases use special JavaScript features like async/await, generators, or ES modules.

**Benchmark Results**

The latest benchmark results show that:

* **Ternary if**: Has the highest execution rate (17091358.0 executions per second).
* **if &&**: Has a lower but still significant execution rate (15636021.0 executions per second).
* **Array.includes**: Has the lowest execution rate (9240383.0 executions per second).

The results suggest that the **Ternary if** approach is slightly faster than the other options, likely due to its ability to combine two operations into one.

**Alternative Approaches**

Some alternative approaches to check if a string is not equal to 'bar' or 'baz' could include:

* Using `!=` operator directly on the string.
* Using a regular expression with the `test()` method.
* Utilizing a custom implementation using a switch statement or a lookup table.

However, these alternatives are not being tested in this specific benchmark.

Latest run results:

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

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser/OS: Chrome 125 on Linux

View result in a separate tab

Test name	Executions per second
if &&	15636021.0 Ops/sec
Array.includes	9240383.0 Ops/sec
Ternary if	17091358.0 Ops/sec

Related benchmarks:

array.includes vs if && vs ternary if && (version: 0)

Comparing performance of: if && vs Array.includes vs Ternary if

Created: one month ago by: Guest

Jump to the latest result

if &&

Array.includes

Ternary if

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):