Run results for: Proxy vs defineProperty

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36

Browser: Chrome 119

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Use of defineProperty

12.2M/s

Object access

12.2M/s

Use of simple getter

12.2M/s

Proxy access

11.5M/s

Proxy with get handler access

5.4M/s

Proxy with get reflect handler access

5.1M/s

View exact numbers

Test name	Executions per second
✓ Use of defineProperty	12,210,540 Ops/sec
Object access	12,205,527 Ops/sec
Use of simple getter	12,173,493 Ops/sec
Proxy access	11,542,272 Ops/sec
Proxy with get handler access	5,413,657 Ops/sec
Proxy with get reflect handler access	5,138,150 Ops/sec

Script Preparation code:

object = { value: 'data', getData() {return this.value;} };
Object.defineProperty(object, 'dataProperty', {
  get() { return this.value; }
});
proxy = new Proxy(object, {})
proxyWithReflectHandler = new Proxy(object, {
	get(target, prop, receiver) {
    	return Reflect.get(target, prop, receiver)
    }
})
proxyWithHandler = new Proxy(object, {
	get(target, prop, receiver) {
    	return object[prop];
    }
})

Tests:

Object access
object.value;
Proxy access
proxy.value
Proxy with get handler access
proxyWithHandler.value
Use of simple getter
object.getData();
Use of defineProperty
object.dataProperty;
Proxy with get reflect handler access
proxyWithReflectHandler.value