Proxy Design Pattern

In object-oriented programming, the Proxy design pattern provides a way to control

the access to an object and add additional behavior to it without

modifying its original implementation.

class car {

constructor(make, model) {

this.make = make;

this.model = model;

}

start() {

console.log(`${this.make} ${this.model} started`)

}

}

class carProxy {

car = null;

constructor(ocar) {

this.car = ocar

}

start(hour) {

if (hour < 10 || hour > 19) {

console.log("Not Allowed outside Business Hour")

} else {

this.car.start()

}

}

}

var c = new car("Honda","Corolla")

var cp = new carProxy(c)

cp.start(9)

cp.start(11)

Output:

Not Allowed outside Business Hour

Honda Corolla started