The setPrototypeOf trap is executed when we set the value of the internal [[prototype]] property, using either the Object.setPrototypeOf() method or the __proto__ property. It takes two parameters--that is, the target object and value of the property to be assigned.
This trap will return a Boolean, indicating whether it has successfully set the prototype or not.
Here is a code example that demonstrates how to use the setPrototypeOf trap:
const proxy = new Proxy({}, { setPrototypeOf(target, value) { Reflect.setPrototypeOf(target, value); return true; } }); Reflect.setPrototypeOf(proxy, {name: "Eden"}); console.log(Reflect.getPrototypeOf(proxy).name); //Output "Eden"
