Run results for: Proxy vs defineProperty

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 17_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 17

Operating system: iOS 17.6.1

Device Platform: Mobile

Date tested: one year ago

Object access

14.4M/s

Proxy access

13.9M/s

Use of simple getter

11.9M/s

Use of defineProperty

11.3M/s

Proxy with get reflect handler access

6.1M/s

Proxy with get handler access

5.7M/s

View exact numbers

Test name	Executions per second
✓ Object access	14,425,320 Ops/sec
Proxy access	13,869,615 Ops/sec
Use of simple getter	11,937,675 Ops/sec
Use of defineProperty	11,272,118 Ops/sec
Proxy with get reflect handler access	6,116,030 Ops/sec
Proxy with get handler access	5,696,698 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