Benchmark: Object parameters 2

Script Preparation code:

var a = (a, b, c) => ({
    a,
    b,
    c
})
var b = ({
    a,
    b,
    c
}) => ({
    a,
    b,
    c
})

var C = class C {
  constructor(a, b, c) {
    this.a = a
    this.b = b
    this.c = c
  }
}

Tests:

A
a(1, 2, "foo")
B
b({a: 1, b: 2, c: "foo"})
C
new C(1, 2, "foo")

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
A
B
C

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

This benchmark does not have any results yet. Be the first one to run it!

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

LLMs can make mistakes. Check important info.

I'd be happy to explain the benchmark tests and their results.

**Benchmark Definition JSON**

The provided JSON defines two benchmark tests:

1. **Object parameters 2**: This test measures the performance of creating objects with varying numbers of parameters. The script preparation code defines three functions:
	* `a`: A function that takes three arguments and returns an object with those same arguments.
	* `b`: A function that takes an object with three properties (`a`, `b`, `c`) and returns another object with the same properties, but again, using a more concise syntax (i.e., `{...}` instead of `=> { ... }`).
	* `C`: A class definition that takes three constructor arguments and initializes its instance properties with those values.
2. The test also defines two additional benchmark tests:
	* **A**: This test calls the `a` function with specific input parameters (1, 2, "foo").
	* **B**: This test calls the `b` function with an object containing specific key-value pairs (`{ a: 1, b: 2, c: "foo" }`).
	* **C**: This test instantiates a new instance of class `C` with specific constructor arguments (1, 2, "foo").

**Options Compared**

The benchmark tests compare the performance of:

1. Creating objects with different numbers of parameters using functions and classes.
2. Using concise syntax (`=> { ... }`) versus traditional object literal syntax (`{...}`) in function definitions.

**Pros and Cons of Different Approaches**

1. **Functions vs. Classes**: Functions are generally faster and more lightweight, while classes provide additional features like encapsulation and inheritance. In this test, the class approach is likely slower due to the overhead of creating a new class instance.
2. **Concise syntax vs. Traditional syntax**: The concise syntax (`=> { ... }`) can improve code readability but may introduce performance overhead due to the complexity of parsing and evaluating the expression.

**Library Used (if applicable)**

None, as this test only involves JavaScript core functionality.

**Special JS Features or Syntax**

The `class` keyword is used in the benchmark test, which is a relatively modern feature introduced in ECMAScript 2015. It allows defining classes that can be instantiated like objects, with constructors, instance properties, and methods.

**Other Alternatives**

If you want to run similar benchmarks on different browsers or devices, you may need to:

1. Modify the benchmark definition JSON to accommodate new browser versions or platform configurations.
2. Use a different testing framework or library (e.g., Karma, Jest) that supports more advanced features like async testing or parallel execution.

Keep in mind that these alternatives would require modifying the benchmark tests and setup to accommodate the specific requirements of each target environment.

Related benchmarks:

Object parameters 2 (version: 0)

Comparing performance of: A vs B vs C

Created: 2 years ago by: Guest

Jump to the latest result

A

B

C

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results

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