Source: index.js

export function add(a, b) {
    if (typeof a === 'number' && typeof b === 'number') {
        return a + b;
    }
    else {
        return '' + a + b;
    }
}
/**
 * A super secret string
 * @public
 */
export const SECRET_STRING = 'shhhhh!';
/**
 * A vehicle is a thing that goes places
 */
class Vehicle {
    /**
     * Create a new vehicle
     * @param {number} numWheels Number of wheels
     */
    constructor(numWheels) {
        this.numWheels = numWheels;
    }
    /**
     * Drive the vehicle
     * @returns {string}
     */
    drive() {
        return `Driving with all ${this.numWheels} wheels`;
    }
}
/**
 * A car is a 4-wheeled vehicle
 */
// tslint:disable-next-line:max-classes-per-file
export class Car extends Vehicle {
    /**
     * Create a new car
     */
    constructor() {
        super(4);
    }
}
/**
 * A bike is a 2-wheeled vehicle
 */
// tslint:disable-next-line:max-classes-per-file
export class Bike extends Vehicle {
    constructor() {
        super(2);
    }
}
/**
 * A Unicycle is a 1-wheeled vehicle
 */
// tslint:disable-next-line:max-classes-per-file
export class Unicycle extends Vehicle {
    constructor() {
        super(1);
    }
}