Benchmark: Thingie - MeasureThat.net

Script Preparation code:

var x;

Tests:

assign {}
x = {};
assign new
x = new Object();
assign create
x = Object.create(Object.prototype);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
assign {}
assign new
assign create

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 years ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:55.0) Gecko/20100101 Firefox/55.0

Browser/OS: Firefox 55 on Linux

View result in a separate tab

Test name	Executions per second
assign {}	64306580.0 Ops/sec
assign new	3773555.5 Ops/sec
assign create	36520592.0 Ops/sec

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

LLMs can make mistakes. Check important info.

I'll break down the benchmarking process and explain what's being tested, compared, and their pros/cons.

**Overview**

The provided JSON represents a JavaScript microbenchmark, where users can create and run benchmarks to compare different approaches. The test cases measure how fast each approach executes in various browsers and platforms.

**Benchmark Definition**

The `Script Preparation Code` field specifies the initial setup of the script before running the benchmark. In this case, it's an empty variable declaration: `var x;`. This code is executed once to prepare for the actual benchmarking.

The `Html Preparation Code` field is empty, which means that no HTML-related code needs to be executed.

**Individual Test Cases**

There are three test cases:

1. **"assign {}"`**: This test case assigns an empty object literal `{}` to the variable `x`. It's a simple and straightforward operation.
2. **"assign new"`**: Similar to the previous one, but uses the `new` keyword to create a new object instance.
3. **"assign create"`**: Uses the `Object.create()` method to create a new object by inheriting from `Object.prototype`.

**Comparison of Assignments**

The main difference between these three test cases is how they assign values to `x`. The pros and cons are:

* **`assign {}`**:
	+ Pros: Simple, straightforward operation; likely to be the most efficient way to create an object.
	+ Cons: May incur additional overhead due to object creation, depending on the browser implementation.
* **`assign new`**:
	+ Pros: Creates a new object instance, which might be more efficient than creating an empty object literal.
	+ Cons: Uses the `new` keyword, which can introduce extra overhead; also depends on how the browser implements object creation.
* **`assign create`**:
	+ Pros: Utilizes `Object.create()`, which is a more low-level method for creating objects. Might be more efficient than the other two options.
	+ Cons: More complex operation compared to assigning an empty object literal or using `new`.

**Libraries and Special Features**

There are no external libraries used in these benchmark definitions.

No special JavaScript features, such as ES6 syntax or modern ECMAScript features, are being tested. However, the use of `Object.create()` highlights a more low-level aspect of object creation in JavaScript.

**Alternatives**

Other alternatives for testing assignment operations might include:

* Creating an empty array literal (`[]`) and assigning it to `x`
* Using a library like Lodash or Ramda to create objects
* Utilizing browser-specific APIs, such as the `Array.from()` method, to create arrays (and then converting them to objects)

Keep in mind that these alternatives might not be directly relevant to the current benchmarking scenario, but they demonstrate other approaches to creating and assigning values to variables.

Related benchmarks:

Thingie (version: 0)

Comparing performance of: assign {} vs assign new vs assign create

Created: 7 years ago by: Guest

Jump to the latest result

assign {}

assign new

assign create

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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