Run results for: Proxy vs defineProperty, assign to local

Run details:

User agent: Mozilla/5.0 (Android 14; Mobile; rv:122.0) Gecko/122.0 Firefox/122.0

Browser: Firefox Mobile 122

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Object access

946.9M/s

Use of defineProperty

943.2M/s

Use of simple getter

525.2M/s

Proxy access

160.0M/s

Proxy with get handler access

11.9M/s

Proxy with get reflect handler access

11.5M/s

View exact numbers

Test name	Executions per second
✓ Object access	946,865,472 Ops/sec
Use of defineProperty	943,239,552 Ops/sec
Use of simple getter	525,198,496 Ops/sec
Proxy access	160,030,480 Ops/sec
Proxy with get handler access	11,899,737 Ops/sec
Proxy with get reflect handler access	11,480,620 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
let x = object.value;
Proxy access
let x = proxy.value
Proxy with get handler access
let x = proxyWithHandler.value
Use of simple getter
let x = object.getData();
Use of defineProperty
let x = object.dataProperty;
Proxy with get reflect handler access
let x = proxyWithReflectHandler.value