Run results for: complex ES6 property get & getter function & direct access to object attribute

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36

Browser: Chrome 128

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Directly get

5.8M/s

ES6 property (get)

5.7M/s

Getter function

5.6M/s

View exact numbers

Test name	Executions per second
✓ Directly get	5,827,940 Ops/sec
ES6 property (get)	5,676,232 Ops/sec
Getter function	5,633,518 Ops/sec

Script Preparation code:

class Class {
    constructor () {
      	const id = "hello";
      	this._id = id;
        this.data = [id];
      	this.indexByField = { id: 0 };
    }
    get id() { return this.data[this.indexByField.id] }
    getId() { return this.data[this.indexByField.id] }
}
var cls = new Class()
var wtf

Tests:

ES6 property (get)
wtf = cls.id
Getter function
wtf = cls.getId()
Directly get
wtf = cls._id