Completed exercises.js

exercises.js

@@ -1,114 +1,184 @@
 //Do not change any of the function names
 
 function multiplyByTen(num) {
+
+  var product = num * 10;
+   return product;
   // return num after multiplying it by ten
   // code here
 }
 
 function subtractFive(num) {
+  var difference = num - 5;
+  return difference;
   // return num after subtracting five
   // code here
 }
 
 function areSameLength(str1, str2) {
+  var str1Length = str1.length;
+  var str2Length = str2.length;
+
+  if (str1Length === str2Length) {
+    return true;
+  }
+  return false;
+
   // return true if the two strings have the same length
   // otherwise return false
   // code here
 }
 
 function areEqual(x, y) {
+
+  if (x === y) {
+    return true;
+  } 
+ return false;
   // return true if x and y are the same
   // otherwise return false
   // code here
 }
 
 function lessThanNinety(num) {
+if (num < 90) {
+  return true;
+
+}
+return false;
   // return true if num is less than ninety
   // otherwise return false
   // code here
 }
 
 function greaterThanFifty(num) {
+
+  if (num > 50) {
+    return true;
+  }
+  return false;
   // return true if num is greater than fifty
   // otherwise return false
   // code here
 }
 
 function add(x, y) {
+
+  var sum = x + y;
+  return sum;
+
   // add x and y together and return the value
   // code here
 }
 
 function subtract(x, y) {
+
+  var difference = x - y;
+  return difference;
   // subtract y from x and return the value
   // code here
 }
 
 function divide(x, y) {
+  var dividend = x / y;
+  return dividend;
   // divide x by y and return the value
   // code here
 }
 
 function multiply(x, y) {
+  var product = x * y;
+  return product;
   // multiply x by y and return the value
   // code here
 }
 
 function getRemainder(x, y) {
+  var remainder = x % y;
+  return remainder;
   // return the remainder from dividing x by y
   // code here
 }
 
 function isEven(num) {
+
+if (num % 2 === 0) {
+  return true;
+}
+return false;
   // return true if num is even
   // otherwise return false
   // code here
 }
 
 function isOdd(num) {
-  // return true if num is false
+
+  if (num % 2 === 1) {
+    return true;
+  }
+  return false;
+  // return true if num is odd
   // otherwise return false
   // code here
 }
 
 function square(num) {
+  var square = Math.pow(num, 2);
+  return square;
+
   // square num and return the new value
   // code here
 }
 
 function cube(num) {
+  var cube = Math.pow(num, 3);
+  return cube;
   // cube num and return the new value
   // code here
 }
 
 function raiseToPower(num, exponent) {
+  var power = Math.pow (num, exponent);
+  return power;
+}
+
   // raise num to whatever power is passed in as exponent
   // code here
-}
+
 
 function roundNumber(num) {
+  var round = Math.round(num);
+  return round;
   // round num and return it
   // code here
 }
 
 function roundUp(num) {
+  var ceiling = Math.ceil(num);
+  return ceiling;
   // round num up and return it
   // code here
 }
 
 function addExclamationPoint(str) {
+  var exclamation = str + '!';
+  return exclamation;
   // add an exclamation point to the end of str and return the new string
   // 'hello world' -> 'hello world!'
   // code here
 }
 
 function combineNames(firstName, lastName) {
+  var name = firstName + ' ' + lastName;
+  return name; 
   // return firstName and lastName combined as one string and separated by a space.
   // 'Lambda', 'School' -> 'Lambda School'
   // code here
 }
 
 function getGreeting(name) {
+  var greeting = 'Hello ' + name + '!';
+  return greeting;
   // Take the name string and concatenate other strings onto it so it takes the following form:
   // 'Sam' -> 'Hello Sam!'
   // code here
@@ -117,21 +187,29 @@ function getGreeting(name) {
 // If you can't remember these area formulas then head over to Google or look at the test code.
 
 function getRectangleArea(length, width) {
+  var areaSquare = length * width;
+  return areaSquare;
   // return the area of the rectangle by using length and width
   // code here
 }
 
 function getTriangleArea(base, height) {
+  var areaTriangle = (base * height) / 2;
+  return areaTriangle;
   // return the area of the triangle by using base and height
   // code here
 }
 
 function getCircleArea(radius) {
+  var areaCircle = Math.round(Math.pow(radius,2) * 3.14);
+  return areaCircle;
   // return the rounded area of the circle given the radius
   // code here
 }
 
 function getRectangularPrismVolume(length, width, height) {
+  var areaRectangularPrism = length * width * height;
+  return areaRectangularPrism;
   // return the volume of the 3D rectangular prism given the length, width, and height
   // code here
 }