Benchmark: new object proto

Tests:

instance
SomeClass = function(){}; SomeClass.prototype.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.prototype.wat = function(){this.prop = 'x';}; for(var i = 0; i < 1000; i++){ anInstance = new SomeClass(); anInstance.wat(); } console.log(anInstance.prop);
proto
SomeClass = function(){}; SomeClass.prototype.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.prototype.wat = function(){SomeClass.prototype.prop = SomeClass.prototype.prop + 'x';}; for(var i = 0; i < 1000; i++){ SomeClass.prototype.wat(); } console.log(SomeClass.prototype.prop);
object
SomeClass = function(){}; SomeClass.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.wat = function(){ SomeClass.prop = SomeClass.prop + 'x'; }; for(var i = 0; i < 1000; i++){ SomeClass.wat(); } console.log(SomeClass.prop);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
instance
proto
object

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 8 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.59 Safari/537.36 OPR/41.0.2353.46

Browser/OS: Opera 41 on Windows

View result in a separate tab

Test name	Executions per second
instance	1712.5 Ops/sec
proto	1559.4 Ops/sec
object	1704.3 Ops/sec

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

LLMs can make mistakes. Check important info.

Let's break down the provided benchmark and explain what's being tested.

**Benchmark Purpose**

The test cases are designed to measure the performance of creating and updating object properties in JavaScript. There are three variations:

1. **Instance-based**: Creating a new instance of an object using the `new` keyword and then updating its property.
2. **Proto-based**: Updating the property on the prototype chain of an object.
3. **Object literal**: Assigning a value directly to a property on an object.

**Options Comparison**

The three approaches have different pros and cons:

* **Instance-based (SomeClass.prototype.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.prototype.wat() )**:
	+ Pros: More traditional JavaScript approach, easy to understand.
	+ Cons: May incur additional overhead due to the creation of a new instance and the use of `prototype`.
* **Proto-based (SomeClass.prototype.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.prototype.wat() )**:
	+ Pros: May be faster since it doesn't create a new instance.
	+ Cons: Uses the prototype chain, which can lead to issues with inheritance and overriding properties.
* **Object literal (SomeClass.prop = 'qweqweqweqweqweqweqweqweqweqweqweqweqweq'; SomeClass.wat() )**:
	+ Pros: Fastest approach since it doesn't create a new instance or use the prototype chain.
	+ Cons: May be less intuitive and harder to understand for developers who are not familiar with this syntax.

**Library Usage**

The test cases use the `SomeClass` function as a global variable, which is a common pattern in JavaScript. The purpose of `SomeClass` is not explicitly stated, but it's likely used to create an object with a prototype chain. In this context, `SomeClass.prototype.prop` and `SomeClass.prototype.wat()` are used to access and modify properties on the prototype chain.

**Special JS Features/Syntax**

There is no special JavaScript feature or syntax being tested in these benchmark cases. They're standard JavaScript syntax variations.

**Other Alternatives**

If you wanted to create a similar benchmark, you could consider adding other approaches, such as:

* Using an object literal with `this` binding (e.g., `obj = { prop: '...' }; obj.prop += 'x';`)
* Using a class-based approach (e.g., `class SomeClass { constructor() { this.prop = '...' } }`)
* Using a library or framework-specific syntax (e.g., using a library like Lodash to update properties)

Keep in mind that these alternatives would require additional setup and testing to ensure they're accurately represented in the benchmark.

Related benchmarks:

new object proto (version: 0)

Comparing performance of: instance vs proto vs object

Created: 8 years ago by: Guest

Jump to the latest result

instance

proto

object

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):