Benchmark: obj creation - MeasureThat.net

Tests:

plain obj
var a = {id: 1, name: 'some name'}
freez obj
var b = Object.freeze({id: 1, name: 'some name'})

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
plain obj
freez obj

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.0.0 Safari/537.36 Edg/75.0.131.0

Browser/OS: Chrome 88 on Windows

View result in a separate tab

Test name	Executions per second
plain obj	839894336.0 Ops/sec
freez obj	4883145.5 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's dive into the world of JavaScript microbenchmarks on MeasureThat.net.

**What is being tested?**

The provided benchmark measures the execution time of creating objects in JavaScript. Specifically, it compares two approaches:

1. Creating an object using the traditional syntax: `var a = {id: 1, name: 'some name'}`
2. Freezing an object using the `Object.freeze()` method: `var b = Object.freeze({id: 1, name: 'some name'})`

The benchmark aims to determine which approach is faster and more efficient.

**Options compared**

The two options being compared are:

* Traditional object creation (`var a = {...}`)
* Frozen object creation using `Object.freeze()`

**Pros and Cons of each approach**

**Traditional Object Creation**

Pros:

* Easy to understand and use
* Can be used in most JavaScript scenarios

Cons:

* Creates a new, disposable object that can be garbage collected immediately
* May require additional memory allocation for the created object

**Frozen Object Creation using `Object.freeze()`**

Pros:

* Ensures that the object cannot be modified after creation
* Can be useful in situations where data integrity is crucial (e.g., data binding)

Cons:

* Creates a new, immutable object that cannot be changed
* May require additional memory allocation for the created object

**Library and Special JS Feature**

In this benchmark, there are no explicit libraries or special JavaScript features being used. The focus is solely on comparing the two object creation approaches.

However, it's worth noting that the `Object.freeze()` method was introduced in ECMAScript 5 (ES5) and has been a part of the standard since then. It's widely supported by most modern browsers and engines.

**Other Alternatives**

There are other ways to create objects in JavaScript, such as:

* Using the constructor function syntax: `function Person() { this.id = 1; this.name = 'some name'; }`
* Using a class syntax (introduced in ECMAScript 2015/ES6): `class Person { constructor() { this.id = 1; this.name = 'some name'; } }`

These alternatives are not being tested in this benchmark, as the focus is on comparing traditional object creation and frozen object creation using `Object.freeze()`.

I hope this explanation helps software engineers understand the test case and its underlying logic!

Related benchmarks:

obj creation (version: 0)

Comparing performance of: plain obj vs freez obj

Created: 3 years ago by: Guest

Jump to the latest result

plain obj

freez obj

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):