Run results for: Getter vs Direct Read

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Getter	14531165.0 Ops/sec
Property	13847668.0 Ops/sec

Script Preparation code:

class Cat1 {
  constructor(name) {
    this.name = name;
  }
}

class Cat2 {
  constructor(name) {
    this.fields = {
      name,
    };
  }

  get name() {
    return this.fields.name;
  }
}

var cat1 = new Cat1("Cleo");
var cat2 = new Cat2("Felicia");

Tests:

Getter
cat2.name;
Property
cat1.name;

Run results for: Getter vs Direct Read

Getter

Property