Benchmark: arguments vs array arg

Script Preparation code:

function test() {

  var different = false;
  for (var j = 0; j < arguments.length; j++) {
    if (j % 2 === 0) different = true;
  }
  return different;
}


function test2(v) {
  var different = false;
  for (var j = 0; j < v.length; j++) {
    if (j % 2 === 0) different = true;
  }
  return different;
}

Tests:

arguments
for(var i = 0; i < 10000; i++) { test(i, i + 1, i + 2, i + 3, i + 4, i + 5); }
array arg
for(var i = 0; i < 10000; i++) { test2([i, i + 1, i + 2, i + 3, i + 4, i + 5]); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
arguments
array arg

Fastest: N/A

Slowest: N/A

Latest run results:

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

LLMs can make mistakes. Check important info.

Let's break down what's being tested in the provided JSON benchmark.

**Benchmark Definition**

The benchmark consists of two test cases:

1. `arguments vs array arg`: This test case compares the performance of using an array versus an array of arguments when calling the `test` function. The `test` function takes a variable number of arguments, and the test checks whether every other argument is set to `true`.
2. `for(var i = 0; i < 10000; i++) {\r\n  test(i, i + 1, i + 2, i + 3, i + 4, i + 5);\r\n}`: This test case measures the performance of calling the `test` function with a fixed number of arguments. The test is repeated for 10,000 iterations.

**Options Compared**

In this benchmark, two options are compared:

1. **Arguments**: Using an array of variable arguments to pass values to the `test` function.
2. **Array Arg**: Passing an array as a single argument to the `test` function.

**Pros and Cons**

Here's a brief summary of the pros and cons of each approach:

**Arguments**

Pros:

* Easier to write code that uses variable number of arguments
* Can be more concise

Cons:

* May incur performance overhead due to multiple function calls
* Limited control over argument values

**Array Arg**

Pros:

* More predictable performance, as a single array is passed once
* Allows for better control over argument values

Cons:

* Requires explicit creation and management of an array
* Can be less concise

In general, using arguments can lead to more concise code, but may incur performance overhead. Passing an array as a single argument provides more predictability and control, but requires additional setup.

**Libraries**

None of the provided benchmark code uses any external libraries.

**Special JS Features or Syntax**

There are no special JavaScript features or syntax mentioned in the benchmark definition.

**Other Alternatives**

If you wanted to test alternative approaches, you could consider:

* Using a built-in array function like `reduce()` instead of manual looping.
* Using a different data structure, such as an object or map.
* Using a different programming paradigm, such as functional programming.
* Testing with different browser versions or environments.

Keep in mind that the specific options and alternatives will depend on the goals and requirements of your benchmark.

Related benchmarks:

arguments vs array arg (version: 0)

Comparing performance of: arguments vs array arg

Created: 8 years ago by: Guest

Jump to the latest result

arguments

array arg

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):