Benchmark: if vs noop vs noop arrow vs void

Script Preparation code:

var undef = undefined;
var noop = function noop(){};
var noopArrow = () => {};
var noopVoid = void {};

Tests:

if
if (undef) { undef(); }
noop
noop();
noop arrow
noopArrow();
noop void
noopVoid;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
if
noop
noop arrow
noop void

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):

LLMs can make mistakes. Check important info.

Let's dive into explaining the provided benchmark.

**Benchmark Overview**

The benchmark compares the execution performance of four different approaches: `if` statements, `noop` functions (which do nothing), arrow function notation (`noopArrow`), and the `void` keyword (used in `noopVoid`). The test cases are designed to measure the overhead of each approach.

**Options Compared**

1. **`if` statement**: A traditional conditional statement that checks for a condition and executes code if it's true.
2. **`noop` function**: An empty function that does nothing when called.
3. **Arrow function notation (`noopArrow`)**: A concise way to define small, anonymous functions using the arrow operator `=>`.
4. **`void` keyword (in `noopVoid`)**: The `void` keyword is used in some browsers as a no-op function.

**Pros and Cons of Each Approach**

1. **`if` statement**:
	* Pros: Clear and readable syntax, easy to understand.
	* Cons: May incur overhead due to the conditional check.
2. **`noop` function**:
	* Pros: Can be used as a no-op placeholder in code.
	* Cons: Creates a new function object on each call, which might lead to performance issues if not optimized.
3. **Arrow function notation (`noopArrow`)**:
	* Pros: More concise and expressive than traditional functions.
	* Cons: May not be supported by all browsers or environments.
4. **`void` keyword (in `noopVoid`)**:
	* Pros: A quick no-op operation that doesn't create a new object.
	* Cons: May only work in specific browsers, and its usage is less common.

**Library/Function Purpose**

The benchmark uses the following functions:

1. **`noop`**: An empty function that does nothing when called.
2. **`noopArrow`**: An arrow function that returns undefined (no value) when called.

These functions are used to create test cases for each approach, allowing the benchmark to measure their execution performance.

**Special JS Feature/Syntax**

The benchmark doesn't explicitly mention any special JavaScript features or syntax. However, it's worth noting that some of these approaches might rely on specific browser implementations or ES versions.

**Other Alternatives**

If you're interested in exploring alternative benchmarks or testing frameworks for your JavaScript projects, consider the following options:

1. **Benchpress**: A fast and simple benchmarking library for Node.js.
2. **Benchmark-Helper**: A utility for creating and running benchmarks in Node.js.
3. **js-benchmark**: A lightweight, modular benchmarking framework for JavaScript.

These alternatives might provide more features or flexibility for your benchmarking needs.

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/114.0.0.0 Safari/537.36 Edg/114.0.1823.82

Browser/OS: Chrome 114 on Windows

View result in a separate tab

Test name	Executions per second
if	5438083.0 Ops/sec
noop	5501294.5 Ops/sec
noop arrow	5472890.5 Ops/sec
noop void	5471244.5 Ops/sec

Related benchmarks:

if vs noop vs noop arrow vs void (version: 0)

Comparing performance of: if vs noop vs noop arrow vs noop void

Created: one year ago by: Guest

Jump to the latest result

if

noop

noop arrow

noop void

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 25 days ago):