Kegs and Bottles

index.js

var kegsandbottles = (function () {
  var temp;
  var output = '';
  var counter = 0;
  var numbers = [5, 7];
  var exports = function () {
    exports.start();
  };

  var templates = {
    "tests": [
      function (number) {
        return function (num) {
          var toString = '' + num;
          return num > 0 && toString.indexOf(number) > -1;
        };
      },
      function (number) {
        return function (num) {
          return num > 0 && num % number === 0;
        };
      }
    ],
    "runner": function () {
      return function (el) {
        return el(counter);
      };
    }
  };

  var conditions = {
    "tests": [],
    "count": 0,
  };

  var foundStore = {};

  var foundStoreKey = function (num) {
    return conditions.tests.reduce(function (prev, curr) {
      curr = curr(num) ? '1': '0';
      return prev + curr;
    }, '');
  };

  var renderMethods = {
    "console": function () {
      console.log(output);
    }
  };

  var render = function () {
    output = '' + counter + ' ';
    if(conditions.tests.every(templates.runner())) {
      output = output + 'bottles and ';
    }
    if(conditions.tests.some(templates.runner())) {
      output = output + 'kegs';
    }
    renderMethods.console();
  };

  var compute = function () {
    temp = foundStoreKey(counter);
    if(typeof foundStore[temp] === 'undefined') {
      foundStore[temp] = true;
      conditions.count = conditions.count + 1;
      render();
    }
  };

  // main

  exports.start = function () {
    numbers.forEach(function (number) {
      templates.tests.forEach(function (template) {
        conditions.tests.push(template(number));
      });
    });

    while (conditions.count < Math.pow(2, conditions.tests.length)) {
      compute();
      counter = counter + 1;
    }
  };

  return exports;

})();

kegsandbottles();