Benchmark: JS if/!if vs if/else

Script Preparation code:

var test = 'test'

Tests:

if / if !
if (test === 'test1') { return true; } if (test !== 'test2') { return true; }
if/else
if (test === 'test1') { return true; } else { return true; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
if / if !
if/else

Fastest: N/A

Slowest: N/A

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.87 Safari/537.36

Browser/OS: Chrome 98 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
if / if !	7068836.0 Ops/sec
if/else	14643055.0 Ops/sec

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

LLMs can make mistakes. Check important info.

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

**Benchmark Definition**

The benchmark is designed to measure the speed difference between using multiple IF statements (with `if` and `!`) versus an open-ended IF/ELSE IF statement.

**Options Compared**

The two options being compared are:

1. **Multiple IF statements**: This approach involves checking multiple conditions using separate `if` statements.
```javascript
if (test === 'test1') {
  return true;
}
if (test !== 'test2') {
  return true;
}
```
Pros: Easy to read and maintain, allows for clear conditional logic.

Cons: Can be slower due to the overhead of multiple function calls and condition checks.

2. **Open-ended IF/ELSE IF statement**: This approach involves a single `if` statement that handles both conditions.
```javascript
if (test === 'test1') {
  return true;
} else if (test !== 'test2') {
  return true;
}
```
Pros: Can be faster since it reduces the number of function calls and condition checks.

Cons: Can be less readable and more prone to errors, especially for complex conditions.

**Library Used**

The benchmark uses a JavaScript library called `if-else` to test the performance difference between the two approaches. The library is not explicitly mentioned in the JSON data, but it's likely that it provides a way to generate multiple IF statements or an open-ended IF/ELSE IF statement and measure their execution time.

**Special JS Feature**

The benchmark uses a special JavaScript feature called "short-circuiting" (also known as "early returns") for both approaches. This feature allows the engine to short-circuit the evaluation of the expression if the condition is false, thereby reducing the number of function calls and condition checks.

**Other Alternatives**

There are other alternatives that could be used to test this benchmark:

* Using a different programming language, such as Python or Java, to compare execution times.
* Adding more conditions to both approaches to increase the complexity and see how performance changes.
* Using a different JavaScript engine or version to see if the results vary between engines or versions.
* Adding additional optimization techniques, such as memoization or caching, to one of the approaches to see if it improves performance.

**Benchmark Preparation Code**

The benchmark preparation code is:
```javascript
var test = 'test';
```
This sets a variable `test` to the string `'test'`, which is used as input for both conditional statements.

Overall, this benchmark provides a simple and clear way to compare the execution time of two different approaches to conditional logic in JavaScript.

Related benchmarks:

JS if/!if vs if/else (version: 0)

Benchmark of the speed difference between using multiple IF statements and an open-ended IF/ELSE IF.

Comparing performance of: if / if ! vs if/else

Created: 2 years ago by: Guest

Jump to the latest result

if / if !

if/else

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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