Benchmark: getter vs method #42

Script Preparation code:

class Foo {
  firstName = 'John';
  lastName = 'Doe';

  get fullName() {
    return `${this.firstName} ${this.lastName}`;
  }

  getFullName() {
    return `${this.firstName} ${this.lastName}`;
  }
}

var foo = new Foo();

Tests:

Getter
foo.fullName
Method
foo.getFullName()

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Getter
Method

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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I'd be happy to help you understand the benchmark.

**What is being tested?**

MeasureThat.net is testing two approaches for accessing a property called `fullName` on an object `foo`, which is an instance of the `Foo` class. The test cases are:

1. **Getter**: Using the getter method `get fullName() { ... }`.
2. **Method**: Using the syntax `foo.getFullName()`.

The benchmark compares the performance of these two approaches.

**Options compared**

The options being compared are:

* Getter method (`get fullName() { ... }`)
* Method invocation (`foo.getFullName()`)

**Pros and Cons**

1. **Getter Method**
	* Pros:
		+ Can be more efficient in some cases, as it avoids the overhead of method invocation.
		+ Can be used to implement computed properties or getters.
	* Cons:
		+ May not be supported by all browsers.
2. **Method Invocation**
	* Pros:
		+ More widely supported across browsers.
		+ Can be useful for cases where a getter is not available or desired.
	* Cons:
		+ May incur additional overhead due to method invocation.

**Library and Purpose**

There is no specific library used in this benchmark. The `Foo` class and its properties are defined directly in the JavaScript code.

**Special JS feature or syntax**

The benchmark uses a special syntax for getter methods, which was introduced in ECMAScript 5 (ES5). The syntax `get propertyName() { ... }` is used to define getter methods on objects. This syntax allows for more concise and expressive way of defining computed properties or getters.

**Other alternatives**

Other alternatives for accessing properties include:

* Using the bracket notation (`foo['fullName']`)
* Using the dot notation (`foo.fullName`)

However, these approaches are not being tested in this benchmark.

In summary, MeasureThat.net is testing two approaches for accessing a property on an object: the getter method and method invocation. The benchmark compares their performance and provides insights into the pros and cons of each approach.

Related benchmarks:

getter vs method #42 (version: 0)

Comparing performance of: Getter vs Method

Created: 4 years ago by: Guest

Jump to the latest result

Getter

Method

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):