Basic Problems and Roulette Game

roulette.js

@@ -0,0 +1,85 @@
+function Roulette(initialAmount) {
+  this.bankAmount = initialAmount;
+
+  this.bankroll = function () {
+    console.log("You now have $" + this.bankAmount);
+  };
+
+  this.getPocket = function () {
+    this.pocket = Math.round(Math.random()*37);
+    if(this.pocket == 37)
+      this.pocket = "00";
+  };
+
+  this.lose = function (amount) {
+    this.bankAmount -= amount;
+    console.log("You Lose, the spin was " + this.pocket + ".");
+    console.log("You now have $" + this.bankAmount);
+  };
+
+  this.win = function (amount, multiplier) {
+    this.payout = amount * multiplier;
+    this.bankAmount += this.payout;
+    console.log("You Win $" + this.payout +", the spin was " + this.pocket + "!!!");
+    console.log("You now have $" + this.bankAmount);
+  };
+
+  this.spin = function (amount, bet) {
+    if(amount > this.bankAmount) {
+      console.log("You don't have sufficient balance.");
+    }
+    else {
+      this.payout = 0;
+      this.getPocket();
+
+      switch(bet){
+        case "Even":
+          if (this.pocket % 2 === 0 && this.pocket > 0)
+            this.win(amount, 1);
+          break;
+
+        case "Odd":
+          if (this.pocket % 2 !== 0)
+            this.win(amount, 1);
+          break;
+
+        case "1 to 18":
+          if (this.pocket >= 1 && this.pocket <= 18)
+            this.win(amount, 1);
+          break;
+
+        case "19 to 36":
+          if (this.pocket >= 19 && this.pocket <= 36)
+            this.win(amount, 1);
+          break;
+
+        case "1st 12":
+          if (this.pocket >= 1 && this.pocket <= 12)
+            this.win(amount, 2);
+          break;
+
+        case "2nd 12":
+          if (this.pocket >= 13 && this.pocket <= 24)
+            this.win(amount, 2);
+          break;
+
+        case "3rd 12":
+          if (this.pocket >= 25 && this.pocket <= 36)
+            this.win(amount, 2);
+          break;
+
+        default:
+          if(bet === this.pocket)
+            this.win(amount, 35);
+      }
+      if (this.payout == 0)
+        this.lose(amount);
+    }
+  };
+
+  this.buyIn = function (amount) {
+    console.log("You bought in $" + amount);
+    this.bankAmount += amount;
+    console.log("You now have $" + this.bankAmount);
+  };
+}

scripts.js

@@ -1,32 +1,91 @@
 // FILL IN THE FUNCTIONS BELOW
 
 var sprintFunctions = {
-  largestEl: function(){  
-    // your code here
-  },
-
-  reversed: function(){  
-    // your code here
+  largestEl: function(arr){
+    var largest = arr[0]
+    for(i = 1; i < arr.length; i++)
+      if(largest < arr[i])
+        largest = arr[i]
+    return largest
   },
 
-  loudSnakeCase: function(){  
-    // your code here
+  reversed: function(str){
+    var rev_str = ""
+    for(i = str.length - 1; i >= 0 ; i--)
+      rev_str += str[i]
+    return rev_str
   },
 
-  compareArrays: function(){ 
-    // your code here (replace the return)
-    return "Finish compareArrays first!" 
+  loudSnakeCase: function (sentence){
+    return sentence
+          .replace(/[^A-Za-z ]/g,"")
+          .replace(/\s+/g, " ")
+          .split(" ")
+          .map(function(word) {
+            return word[0].toUpperCase() + word.substr(1);
+          })
+          .join("_");
   },
 
-  fizzBuzz: function(){  
-    // your code here
+  compareArrays: function(arr1, arr2){
+    if(arr1.length != arr2.length)
+      return false;
+    else {
+      for(var i = 0; i < arr1.length; i++)
+        if(arr1[i] != arr2[i])
+          return false;
+    }
+    return true;
   },
 
-  myMap: function(){  
-    // your code here
+  fizzBuzz: function(max){
+    var result = [];
+    for(var i = 1; i <= max; i++){
+      var output = "";
+      if(i % 3 == 0)
+        output += "FIZZ";
+
+      if(i % 5 == 0)
+        output += "BUZZ";
+
+      if(output=="")
+        output = i;
+
+      result.push(output);
+    }
+    return result;
   },
 
-  primes: function(){  
-    // your code here
+  myMap: function(arr, func){
+    var new_arr = [];
+    arr.forEach(function(elem){
+      new_arr.push(func(elem));
+    });
+    return new_arr;
   },
-}
+
+  primes: function(num){
+
+    // Sieve of Eratosthenes Algorithm
+
+    var sieve = [];
+
+    for(var i = 2; i < num; i++)
+      sieve[i] = true;
+
+    var limit = Math.sqrt(num);
+
+    for(var i = 2; i < limit; i++) {
+      if(sieve[i]) {
+        for(var j = i * i; j < num; j += i)
+          sieve[j] = false;
+      }
+    }
+    var prime_arr = [];
+    sieve.forEach(function (isPrime, index) {
+      if(isPrime)
+        prime_arr.push(index);
+    })
+    return prime_arr;
+  }
+}