homework 2

cards-template1a.js

@@ -2,19 +2,39 @@
 
 // function()--> possible return values
 
+var card;
+
+
 function rank(card) { // --> 1..13
+  var rankOfCard = ((card-(card%4))/4)+1;
+  return rankOfCard;
 }
 
 function suit(card) { // --> 1..4
+    var suitOfCard = (card%4)+1;
+  return suitOfCard;
 }
 
+
 function cardID(rank,suit) { // --> 0..51
+  var cardIDfound = (4*(rank-1)+(suit-1));
+  return cardIDfound;
 }
 
 function color(card) { // -->"red","black"
+  var column = (card%4);
+  if (column<=1) {
+    return 'red';
+  } else {
+    return 'black';
+  }
 }
 
 function name(card) { // --> string
+  var ranks = ['Ace','Two','Three','Four','Five','Six','Seven','Eight','Nine','Ten','Jack','Queen','King'];
+  var suits = ['Hearts','Diamonds','Spades','Clubs'];
+  var nameOfCard = ranks[(card-(card%4))/4] + ' of ' + suits[(card%4)];
+  return nameOfCard;
 }
 
 

cards-template1b.js

@@ -1,26 +1,75 @@
 // Error-detecting version
 
 function rank(card) {
+  var rankOfCard = ((card-(card%4))/4)+1;
+  if (((card%1)===0)&&(card<=51)){
+    return rankOfCard;
+  } else {
+    return NaN;
+  }
+
 }
 
 function suit(card) {
+  var suitOfCard = (card%4)+1;
+  if (((card%1)===0)&&(card<=51)){
+    return suitOfCard;
+  } else {
+    return NaN;
+  }
 }
 
 function cardID(rank,suit) {
+  var cardIDfound = (4*(rank-1)+(suit-1));
+  if (((rank%1)===0)&&(0<rank<=13)){
+    return cardIDfound;
+  } else if (((suit%1)===0)&&(0<suit<=4))
+    {return cardIDfound;
+  } else {
+    return NaN;
+  }
 }
 
 function color(card) {
+  if (((card%1)===0)&&(card<=51)){
+    var column = (card%4);
+      if (column<=1) {
+      return 'red';
+    } else {
+      return 'black';
+    }
+  } else {
+    return NaN;
+  }
+
 }
 
 function name(card) {
+  var ranks = ['Ace','Two','Three','Four','Five','Six','Seven','Eight','Nine','Ten','Jack','Queen','King'];
+  var suits = ['Hearts','Diamonds','Spades','Clubs'];
+  if (((card%1)===0)&&(card<=51)){
+    var nameOfCard = ranks[(card-(card%4))/4] + ' of ' + suits[(card%4)];
+    return nameOfCard;
+  } else {
+    return NaN;
+  }
 }
 
 
-
 // TESTING:
 function assert(claim,message) {
     if (!claim) console.error(message);
 }
+
+//my tests!
+assert(color(38)==='black', "test A failed");
+assert(suit(14)===3, "test B failed");
+assert(name(42)==="Jack of Spades", "test C failed");
+assert(rank(23)===4, "good, test D failed!");
+assert(color(20)==='black', "good, test E failed!");
+assert(cardID(3,2)===34, 'good, test F failed!');
+
+//
 assert(rank(0)===1,  "Test 1 failed");
 assert(rank(3)===1,  "Test 2 failed");
 assert(rank(51)===13,"Test 3 failed");
@@ -66,3 +115,5 @@ assert(Number.isNaN(name(-1)),      "Test 44 failed");
 assert(Number.isNaN(name(52)),      "Test 45 failed");
 assert(Number.isNaN(name(NaN)),     "Test 46 failed");
 
+
+

homework2.js

@@ -0,0 +1,105 @@
+//Section 1
+//a
+function fractionString(n,d){
+    var n;
+    var d;
+    var remainder = n % d;
+    var wholeNumber = ((n - remainder)/d);
+    var result = wholeNumber + " " + remainder + '/' + d;
+    return result;
+}
+
+console.log(fractionString(3,3));
+
+//b
+function fractionString(n,d){
+    var n;
+    var d;
+    var remainder = n % d;
+    var wholeNumber = ((n - remainder)/d);
+    var result = wholeNumber + " " + remainder + '/' + d;
+    var noWholeNumber = remainder + '/' + d;
+    if (wholeNumber===0){
+        return noWholeNumber;
+    } else if (remainder===0){
+        return wholeNumber;
+    } else {
+        return result;}
+}
+
+console.log(fractionString(4,2));
+
+//Section 2
+//a
+var i = math.round(n);
+
+//b
+var y = (x? false : true);
+
+//c
+var i=15;
+
+for (i; i>0; i--){
+      console.log(i);
+}
+
+//d
+if (a&&b){
+    x = 0;
+}else if (a||b){
+    x = 1;
+}else {
+    x = 2;
+}
+
+//3
+
+//a
+var letter = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'];
+
+var n;
+
+function letterTriangle(n){
+  var output = '';
+  for (var line =0; line<n; line++){
+    for (var col=line; col>=0; col--){
+      output = output + letter[col];
+    }
+    output += '\n';
+  }
+  return output;
+}
+
+console.log(letterTriangle(5));
+
+//b coming soon!
+
+// Section 4
+
+//a
+function and2(a,b){
+    if (a = true){
+    }else if (b = true) {
+        return true;
+    }else {
+        return false;
+    }
+    if (a = false){
+    }else if (b = false){
+      return true;
+    }else {
+      return false;
+    }
+
+}
+
+//hmmm not quite working but not sure why??
+//more coming soon! sorry :(
+
+
+
+
+
+
+
+