Choose what to eat for lunch by rolling a jsdice.

chooseLunch.js

/**
 * @file
 * Contains dice with n sides.
 */

'use strict';

/**
 * Defines Dice class.
 *
 * @class
 * @classdesc Allows a dice to be created, and rolled.
 */
class Dice {

  /**
   * Scaffolds class properties, sets up dice sides.
   * @param {array} sides array of strings that represent dice sides.
   * @returns {undefined} nothing.
   */
  constructor(sides) {
    if (sides.constructor === Array && sides.length > 0) {
      this.sides = sides;
    }
    else {
      throw new Error('Sides must be an array with values, you dipshit');
    }
  }

  /**
   * Rolls the dice!
   * @returns {string} random side.
   */
  roll() {
    return this.sides[Math.floor(Math.random() * this.sides.length)];
  }
}

// Create instance of dice object, pass it delicious ATX eats.
let game = new Dice([
  'Torchys',
  'Bills',
  'TacoDeli',
  'KerbyLane',
  'MadamMams',
  'KoreaHouse',
  'NeWorld'
]);

// Roll the dice and log the output.
console.log(game.roll());