Benchmark: create obj - MeasureThat.net

Tests:

test1
function test1() { const obj = {}; obj.abc = "abc"; return obj }
test2
function test2() { return { abc: "abc"}; }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
test1
test2

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

I'll break down the provided benchmark definition, test cases, and latest benchmark result to help explain what's being tested.

**Benchmark Definition**

The benchmark definition is an object that defines a simple JavaScript microbenchmark. It has four properties:

* `Name`: a string that represents the name of the benchmark.
* `Description`: null, which means there's no description for this benchmark.
* `Script Preparation Code`: null, which means there's no code to prepare before running the benchmark.
* `Html Preparation Code`: null, which means there's no HTML code to prepare before running the benchmark.

This suggests that the benchmark is focused on measuring the execution time of a specific JavaScript code snippet, and it doesn't require any setup or initialization.

**Individual Test Cases**

The individual test cases are two separate benchmarks:

* `test1`:
	+ Benchmark Definition: A function named `test1` that creates an object with a property `abc` and assigns it the value `"abc"`. The function returns the created object.
* `test2`:
	+ Benchmark Definition: Another function named `test2` that returns an object with a single property `abc` and assigns it the value `"abc"`.

These test cases are simple and focus on measuring the execution time of creating an object with a property assignment, as well as returning an object directly.

**Library and Special Features**

Neither of the test cases uses any external libraries or special JavaScript features. The code is straightforward and only focuses on basic JavaScript syntax.

**Options Compared**

The benchmark compares two options:

* **Option 1: Creating an object using a constructor function** (`const obj = {}; obj.abc = "abc"; return obj;`)
* **Option 2: Creating an object directly using the literal notation** (`return { abc: "abc" };`)

These two options are compared to determine which one is faster in terms of execution time.

**Pros and Cons**

Here's a brief analysis of each option:

* **Creating an object using a constructor function**:
	+ Pros: Can be useful when working with objects that have a specific prototype or inheritance structure.
	+ Cons: May require more memory allocation and overhead due to the creation of an empty object.
* **Creating an object directly using the literal notation**:
	+ Pros: Is often faster and more lightweight, as it doesn't involve creating an empty object.
	+ Cons: May not be suitable when working with objects that have a specific prototype or inheritance structure.

**Other Considerations**

It's worth noting that both options are simple and don't involve any complex logic or operations. The benchmark is likely focusing on measuring the basic overhead of JavaScript engine implementation, rather than any nuances related to object creation.

**Alternatives**

If you were to create an alternative benchmark, you might consider exploring other scenarios, such as:

* Creating a large array or matrix
* Performing multiple object creations in a row
* Using different types of objects (e.g., arrays, sets, maps)
* Incorporating external libraries or frameworks

These variations could help identify potential performance bottlenecks or areas for optimization in the JavaScript engine.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.121 Safari/537.36

Browser/OS: Chrome 72 on Mac OS X 10.11.6

View result in a separate tab

Test name	Executions per second
test1	613870720.0 Ops/sec
test2	612517120.0 Ops/sec

Related benchmarks:

create obj (version: 0)

Comparing performance of: test1 vs test2

Created: 5 years ago by: Guest

Jump to the latest result

test1

test2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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