class-decorator.js

var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
function BankCard(constructor) {
    constructor.prototype.cardId = Math.floor(Math.random() * 1000);
}
var HSBCBankCard = /** @class */ (function () {
    function HSBCBankCard(name) {
        this.name = name;
    }
    HSBCBankCard = __decorate([
        BankCard
    ], HSBCBankCard);
    return HSBCBankCard;
}());
var card = new HSBCBankCard("Dennis");
console.log(card.name);
// @ts-ignore
console.log(card.cardId);