Javascript exercises Finished

exercises/001-isOldEnoughToDrink/app.js

@@ -1,4 +1,6 @@
 function isOldEnoughToDrink(age) {
     // your code here
+    let result =  age>= 21 ? true :false;
+    return result
 
 }

exercises/002-isOldEnoughToDrive/app.js

@@ -1,4 +1,6 @@
 function isOldEnoughToDrive(age) {
   // your code here
+  let result =  age>= 16 ? true :false;
+    return result
 
 }

exercises/003-isOldEnoughToVote/app.js

@@ -1,4 +1,6 @@
 function isOldEnoughToVote(age) {
   // your code here
+  let result =  age>= 18 ? true :false;
+    return result
 
 }

exercises/004-isOldEnoughToDrinkAndDrive/app.js

@@ -1,4 +1,4 @@
 function isOldEnoughToDrinkAndDrive(age) {
   // your code here
-
+  return false
 }

exercises/005-checkAge/app.js

@@ -1,4 +1,6 @@
 function checkAge(name, age) {
   // your code here
-
+  let message = age < 21 ? `Go home, ${name}!` : `Welcome, ${name}!`;
+  return message;
+
 }

exercises/006-getFullName/app.js

@@ -1,4 +1,5 @@
 function getFullName(firstName, lastName) {
   // your code here
+  return `${firstName} ${lastName}`;
 
 }

exercises/007-getLengthOfWord/app.js

@@ -1,4 +1,5 @@
 function getLengthOfWord(word) {
   // your code here
+  return word.length;
 
 }

exercises/008-getLengthOfTwoWords/app.js

@@ -1,4 +1,5 @@
 function getLengthOfTwoWords(word1, word2) {
   // your code here
+  return word1.length + word2.length;
 
 }

exercises/009-getLengthOfThreeWords/app.js

@@ -1,5 +1,6 @@
 function getLengthOfThreeWords(word1, word2, word3) {
   // your code here
+  return word1.length + word2.length + word3.length;
 
 }
 

exercises/010-isSameLength/app.js

@@ -1 +1,5 @@
-// Write your function here
+// Write your function here
+function isSameLength(word1,word2){
+    let result = word1.length == word2.length ? true : false;
+    return result;
+}

exercises/011-isGreaterThanTen/app.js

@@ -1,4 +1,6 @@
 function isGreaterThanTen(num) {
   // your code here
+  let result = num>10 ? true : false;
+  return result;
 
 }

exercises/012-isLessThanThirty/app.js

@@ -1,4 +1,5 @@
 function isLessThan30(num) {
   // your code here
-
+  let result = num<30 ? true : false;
+  return result;  
 }

exercises/013-equalsTen/app.js

@@ -1,4 +1,6 @@
 function equalsTen(num) {
   // your code here
-
+
+  let result = num==10 ? true : false;
+  return result;  
 }

exercises/014-isLessThan/app.js

@@ -1,3 +1,5 @@
 function isLessThan(num1, num2) {
   // your code here
+  let result = num2<num1? true : false;
+  return result;  
 }

exercises/015-isGreaterThan/app.js

@@ -1,4 +1,5 @@
 function isGreaterThan(num1, num2) {
   // your code here
-
+  let result = num2>num1? true : false;
+  return result; 
 }

exercises/016-isEqualTo/app.js

@@ -1 +1,5 @@
-// Write your function here
+// Write your function here
+function isEqualTo(num1, num2) {
+    let result = num2 === num1 ? true : false;
+    return result;
+}

exercises/017-isEven/app.js

@@ -1 +1,8 @@
-// Write your function here
+// Write your function here
+function isEven(num){
+    if(num%2==0){
+        return true;
+    }else{
+        return false;
+    }
+}

exercises/018-isOdd/app.js

@@ -1 +1,8 @@
-// Write your function here
+// Write your function here
+function isOdd(num){
+    if(num%3==0){
+        return true;
+    }else{
+        return false;
+    }
+}

exercises/019-areBothOdd/app.js

@@ -1 +1,8 @@
 // Write your function here
+function areBothOdd(num1, num2){
+    if(num1%2!=0 && num2%2!=0){
+        return true;
+    }else{
+        return false;
+    }
+}

exercises/020-isEitherEven/app.js

@@ -1 +1,8 @@
-// Write your function here
+// Write your function here
+function isEitherEven(num1, num2){
+    if(num1%2==0 || num2%2==0){
+        return true;
+    }else{
+        return false;
+    }
+}

exercises/021-isOddLength/app.js

@@ -1 +1,4 @@
 // Write your function here
+const isOddLength =  (str)=>{
+    return str.length%2!=0 ? true : false;
+}

exercises/022-isEvenLength/app.js

@@ -1 +1,4 @@
-// Write your function here
+// Write your function here
+const isEvenLength =  (str)=>{
+    return str.length%2==0 ? true : false;
+}

exercises/023-computeAverageLengthOfWords/app.js

@@ -1 +1,4 @@
-// Write your function here
+// Write your function here
+const computeAverageLengthOfWords = (str1, str2)=>{
+    return (str1.length+str2.length)/2;
+}

exercises/024-isEvenAndGreaterThanTen/app.js

@@ -1 +1,4 @@
-// Write your function here
+// Write your function here
+function isEvenAndGreaterThanTen(num){
+    return (num%2==0 && num>10) ? true : false
+}

exercises/025-average/app.js

@@ -1 +1,4 @@
-// Write your function here
+// Write your function here
+const average = (num1, num2)=>{
+    return(num1+num2)/2;
+}

exercises/026-computeAreaOfATriangle/app.js

@@ -1 +1,4 @@
 // Write your function here
+const computeAreaOfATriangle= (b,h)=>{
+    return (b*h)/2;
+}

exercises/027-cube/app.js

@@ -1 +1,4 @@
-// Write your function here
+// Write your function here
+function cube(num){
+    return num**3;
+}

exercises/028-square/app.js

@@ -1 +1,4 @@
 // Write your function here
+const square = (num)=>{
+    return num**2;
+}

exercises/029-getProperty/app.js

@@ -1,4 +1,4 @@
 function getProperty(obj, key) {
   // your code here
-
+  return obj[key];
 }

exercises/030-addProperty/app.js

@@ -1,4 +1,5 @@
 function addProperty(obj, key) {
   // your code here
-
+  obj[key] = true;
+  return obj;
 }

exercises/031-removeProperty/app.js

@@ -1,4 +1,5 @@
 function removeProperty(obj, key) {
   // your code here
-
+  delete obj[key];
+  return obj;
 }

exercises/032-addFullNameProperty/app.js

@@ -1,4 +1,12 @@
-function addFullNameProperty(obj) {
-  // Add your code after this line
-
-}
+function addFullNameProperty(obj){
+  let newObj = obj;
+  newObj['fullName'] = newObj['firstName'] + " " + newObj['lastName'];
+  return newObj;
+}
+
+let person = {
+  firstName: 'Jade',
+  lastName: 'Smith'
+};
+addFullNameProperty(person);
+console.log(person.fullName);

exercises/033-addObjectProperty/app.js

@@ -1,4 +1,5 @@
 function addObjectProperty(obj1, key, obj2) {
   // Add your code after this line
-
+  obj1[key] = obj2;
+  return obj1;
 }

exercises/034-isPersonOldEnoughToDrive/app.js

@@ -1,4 +1,4 @@
 function isPersonOldEnoughToDrive(person) {
   // Add your code after this line
-
+  return person.age >= 16 ? true : false;
 }

exercises/035-isPersonOldEnoughToVote/app.js

@@ -1,4 +1,4 @@
 function isPersonOldEnoughToVote(person) {
   // Add your code after this line
-
+  return person.age >= 18 ? true : false;
 }

exercises/036-isPersonOldEnoughToDrink/app.js

@@ -1,4 +1,4 @@
 function isPersonOldEnoughToDrink(person) {
   // Add your code after this line
-
+  return person.age >= 21 ? true : false;
 }

exercises/037-addArrayProperty/app.js

@@ -1,4 +1,12 @@
 function addArrayProperty(obj, key, arr) {
   // Add your code after this line
+  obj[key] = arr;
+  return obj
 
-}
+}
+
+let myObj = {};
+let myArray = [1, 3];
+console.log(myObj); // --> {}
+addArrayProperty(myObj, 'myProperty', myArray);
+console.log(myObj.myProperty); // --> [1, 3]

exercises/038-computeAreaOfARectangle/app.js

@@ -1,6 +1,6 @@
 function computeAreaOfARectangle(length, width) {
   // your code here
-
+  return parseFloat(length) * parseFloat(width);
 }
 
 let output = computeAreaOfARectangle(10, 18);

exercises/039-computePerimeterOfARectangle/app.js

@@ -1,5 +1,6 @@
 function computePerimeterOfARectangle(length, width) {
   // your code here
+  return (parseFloat(length) + parseFloat(width)) * 2;
 }
 
 let output = computePerimeterOfARectangle(5, 2);

exercises/040-computePerimeterOfATriangle/app.js

@@ -1,5 +1,6 @@
 function computePerimeterOfATriangle(side1, side2, side3) {
   // your code here
+  return parseFloat(side1) + parseFloat(side2) + parseFloat(side3);
 }
 
 let output = computePerimeterOfATriangle(6, 4, 10);

exercises/041-computeTripledAreaOfARectangle/app.js

@@ -1,5 +1,6 @@
 function computeTripledAreaOfARectangle(length, width) {
   // your code here
+  return (parseFloat(length) * parseFloat(width))*3
 
 }
 

exercises/042-computePerimeterOfACircle/app.js

@@ -1,5 +1,6 @@
 function computePerimeterOfACircle(radius) {
   // your code here
+  return radius * Math.PI * 2;
 
 }
 

exercises/043-computeAreaOfACircle/app.js

@@ -1,5 +1,6 @@
 function computeAreaOfACircle(radius) {
     // your code here
+    return Math.PI * (radius**2);
 }
 
 let output = computeAreaOfACircle(4);

exercises/044-computePower/app.js

@@ -1,5 +1,6 @@
 function computePower(num, exponent) {
   // your code here
+  return num ** exponent
 }
 
 let output = computePower(2, 3);

exercises/045-computeSquareRoot/app.js

@@ -1,5 +1,6 @@
 function computeSquareRoot(num) {
   // your code here
+  return Math.sqrt(num);
 }
 
 let output = computeSquareRoot(9);

exercises/046-doubleSquareRootOf/app.js

@@ -1,6 +1,6 @@
 function doubleSquareRootOf(num) {
   // your code here
-
+  return (Math.sqrt(num)) * 2;
 }
 
 let output = doubleSquareRootOf(121);

exercises/047-isEitherEvenOrAreBoth7/app.js

@@ -1,4 +1,4 @@
 function isEitherEvenOrAreBoth7(num1, num2) {
     // your code here
-
+    return (num1 % 2 === 0 || num2 % 2 === 0) || (num1 === 7 && num2 === 7);
 }

exercises/048-isEitherEvenAndLessThan9/app.js

@@ -1,5 +1,6 @@
 function isEitherEvenAndLessThan9(num1, num2) {
     // your code here
+    return ((num1 % 2 === 0 || num2 % 2 === 0) && (num1 < 9 && num2 < 9));
 
 }
 

exercises/049-computeAverageOfNumbers/app.js

@@ -1 +1,12 @@
 // Write your function here
+function computeAverageOfNumbers(numbers) {
+    if (numbers.length === 0) {
+        return 0;
+    } else {
+        let total = 0;
+        for (i = 0; i < numbers.length; i++) {
+            total += numbers[i];
+        }
+        return total / numbers.length;
+    }
+}

exercises/050-getNthElement/app.js

@@ -1,4 +1,4 @@
 function getNthElement(array, n) {
   // Add your code after this line
-
+  return array[n];
 }