javascript - how typescript comparing two objects?

I have one class called tax.

    export class tax {
        private _id: string;
        private _name: string;
        private _percentage: number;`

        constructor(id: string = "", taxName: string = "", percentage: number = 0) {
            this._id = id;

            this._name = taxName;
            this._percentage = percentage;
        }


        public get id(): string {
            return this._id;
        }

        public set id(v: string) {

            this._id = v;
        }
        public get name(): string {
            return this._name;
        }

        public set name(v: string) {
            this._name = v;
        }
        public get percentage(): number {

            return this._percentage;
        }

        public set percentage(v: number) {
            this._percentage = v;
        }

        toString(){
            return this.id;
        }

    }

When I create 2 different objects of this class

    a1: tax = new tax("id","name",4);
    a2: tax = new tax("id","name",4); 

    console.log(a1 === a2); //false
    console.log(a1 == a2); //false

When I give a1 === a2 it should give true.
what changes i have to do in my class so it will give a1 === a2 ?
What I have to do in tax class? or which method I have to override in tax class?