Benchmark: arrayaccessingvsobjectaccesginsgin

Script Preparation code:

var array = [1, 2, 3, 4, 5, 6];
var object = {a: 1, b: 2, c: 3, d: 4, e: 5, f: 6};

Tests:

array
eval(""); var r = array[0]; r = array[1]; r = array[2]; r = array[3]; r = array[4]; r = array[5];
object
eval(""); var r = object.a; r = object.b; r = object.c; r = object.d; r = object.e; r = object.f;

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array
object

Fastest: N/A

Slowest: N/A

Latest run results:

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

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Let's break down what's being tested in this benchmark.

**What is being tested?**

The benchmark is designed to compare the performance of accessing elements in an array versus an object in JavaScript. The tests are identical, except that one uses an array (`array`) and the other uses an object (`object`).

In the test cases:

1. "array": The script prepares a simple array with 6 elements and then accesses each element in sequence using bracket notation (e.g., `array[0]`, `array[1]`, etc.). The benchmark measures how many executions per second this code can perform.
2. "object": Similar to the first test, but instead of an array, a simple object with 6 properties (`a` to `f`) is used. The script accesses each property in sequence using dot notation (e.g., `object.a`, `object.b`, etc.).

**Options compared**

The benchmark compares two options:

1. **Array access**: Using bracket notation to access elements in an array.
2. **Object access**: Using dot notation to access properties in an object.

**Pros and cons of each approach:**

* **Array access**: Pros:
	+ Can be faster for small arrays due to the simplicity of accessing individual elements.
	+ Often optimized by JavaScript engines for sequential access.
Cons:
	+ May require more memory accesses, which can be slower than direct property accesses in objects.
* **Object access**: Pros:
	+ Can be faster for large objects because it allows for direct property accesses, which are often optimized by JavaScript engines.
Cons:
	+ Requires the object to be accessed sequentially, which can lead to slower performance if the object is not sequentialy indexed.

**Library and purpose**

There is no specific library mentioned in this benchmark. The tests use only built-in JavaScript data structures (arrays and objects).

**Special JS feature or syntax**

This benchmark does not appear to use any special JavaScript features or syntax beyond standard JavaScript language constructs (e.g., bracket notation, dot notation, `eval()`).

Related benchmarks:

arrayaccessingvsobjectaccesginsgin (version: 0)

for oPTIAMSoNIO!@N!N!

Comparing performance of: array vs object

Created: 3 years ago by: Guest

Jump to the latest result

array

object

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):