complete

src/conditional-flow/boolean-conditions.js

@@ -1,10 +1,18 @@
 // This function should accept a boolean value and return the string
 // "Well done, you passed!" if the value is true, or "Sorry, try again"
 // if the value is false.
+
 function getResult (didPass) {
+  let result="";
 
-  // TODO: write code in this function body to pass the tests
+  if(didPass){
+   result = "Well done, you passed!";
+  }else{
+   result = "Sorry, try again";
+  }
 
+  // TODO: write code in this function body to pass the tests
+return result;
 }
 
 module.exports = {

src/conditional-flow/multiple-conditions.js

@@ -1,19 +1,26 @@
 // This function should return true if num is greater
 // than or equal to lower AND less than or equal to upper.
 // Implement this with a single condition.
-function isInRange (num, lower, upper) {
+function isInRange(num, lower, upper) {
+  let result = false
+  if (num >= lower && num <= upper) {
+    result = true
+  }
+  return result
 
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the passed string is equal
 // to "Hello" or "Goodbye". Implement this with a single
 // if statement.
-function isHelloOrGoodbye (val1) {
-
+function isHelloOrGoodbye(val1) {
+  let result = false
+  if (val1 == 'Hello' || val1 == 'Goodbye') {
+    result = true
+  }
+  return result
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return a string that describes the provided age value. The
@@ -28,8 +35,24 @@ function isHelloOrGoodbye (val1) {
 // 5-12   | Child
 // 13-19  | Teenager
 // 20+    | Adult
-function getAgeDescription (age) {
-
+function getAgeDescription(age) {
+  let ageString ="";
+  if(age ===0){
+    ageString="Baby";
+  }else if(age>=1 && age<=4){
+    ageString="Toddler";
+  }
+  else if(age>=5 && age<=12){
+    ageString="Child";
+  }
+  else if(age>=13 && age<=19){
+    ageString="Teenager";
+  }
+  else if(age>=20){
+    ageString="Adult";
+  }
+  return ageString;
+
   // TODO: write code in this function body to pass the tests
 }
 

src/conditional-flow/numeric-conditions.js

@@ -1,24 +1,39 @@
 // TODO: Implement the functions below to make the tests pass
 
 // This function should return true if there are no elements in the array, false otherwise
-function isArrayEmpty (array) {
-
+function isArrayEmpty(array) {
+  let result;
+  if (array == null||array.length == 0) {
+    result=true;
+
+  }else{
+    result = false;
+  }
+  return result;
+
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if num1 is greater than num2, false otherwise
-function isGreaterThan (num1, num2) {
-
+function isGreaterThan(num1, num2) {
+  if(num1 > num2){
+    return true;
+  }else{
+    return false;
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return the lowest number in the passed array
-function findLowest (nums) {
-
+function findLowest(nums) {
+  let lowestNum = nums[0];
+  for (var i = 0; i <= nums.length; i++){
+    if(lowestNum>nums[i]){
+      lowestNum=nums[i];
+    }
+  }
+  return lowestNum;
   // TODO: write code in this function body to pass the tests
-
 }
 
 module.exports = {

src/conditional-flow/string-conditions.js

@@ -1,55 +1,113 @@
 // This function should return true if the passed string is equal to "Hello"
-function isHello (val1) {
-
+function isHello(val1) {
+  if (val1 == 'Hello') {
+    return true
+  } else {
+    return false
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the passed string is not equal to "Hello"
-function isNotHello (val1) {
-
+function isNotHello(val1) {
+  if (val1 != 'Hello') {
+    return true
+  } else {
+    return false
+  }
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the string val1 is is longer
 // than string val2
-function isLongerThan (val1, val2) {
+function isLongerThan(val1, val2) {
+  if (val1.length > val2.length) {
+    return true
+  } else {
+    return false
+  }
 
   // TODO: write code in this function body to pass the tests
-
 }
 
 // This function should return true if the string passed in the function's first
 // argument has an odd number of vowels
 
-function hasOddNumberVowels (val1) {
-
-  // TODO: write code in this function body to pass the tests
-
+function hasOddNumberVowels(val1) {
+  let vowels = ['a', 'A', 'e', 'E', 'i', 'I', 'o', 'O', 'u', 'U']
+  let vowelsNum = 0
+  let result
+
+  for (let i = 0; i < val1.length; i++) {
+    for (let j = 0; j < vowels.length; j++) {
+      if (val1[i] == vowels[j]) {
+        vowelsNum = vowelsNum + 1
+      }
+    }
+  }
+
+  if (vowelsNum % 2 == 0) {
+    return (result = false)
+  } else {
+    return (result = true)
+  }
 }
+// TODO: write code in this function body to pass the tests
 
 // this function should return the middle character of a string if it has an odd number
 // of characters. If there are an even number of characters the function should return
 // the middle two letters
 
-function getMiddleLetter (val1) {
-  // TODO: write code in this function body to pass the tests
+function getMiddleLetter(val1) {
+  let val2 = Array.from(val1)
+
+  let valStr = ''
 
+  let valNum = val1.length
+  let halfStr = valNum / 2
+  halfStr = halfStr.toFixed(0)
+  //Even String
+  if (valNum % 2 == 0) {
+    valStr = val2[halfStr - 1] + val2[halfStr]
+    console.log(valStr + ' ' + halfStr)
+  } //Odd String
+  else if (valNum % 2 != 0) {
+    valStr = val2[halfStr - 1]
+  }
+
+  return valStr
+  // TODO: write code in this function body to pass the tests
 }
 
 // This function should return the name of the season for the provided
-// month name. For example, "January" should return "Winter". If the provided
+// month name.
+//For example, "January" should return "Winter". If the provided
 // value is not a valid month, an empty string ("") should be returned. Use
 // the below ranges for each season:
 //
 // Spring - March to May
 // Summer - June to August
 // Autumn - September to November
 // Winter - December to February
-function seasonForMonth (monthName) {
-
+function seasonForMonth(monthName) {
   // TODO: write code in this function body to pass the tests
+
+  let season;
+
+  if(monthName == 'March' || monthName == 'April' || monthName == 'May') {
+    season = 'Spring';
+  }else if(monthName =='June' || monthName == 'July' || monthName == 'August'){
+    season = 'Summer';
+  }else if(monthName == 'September' || monthName == 'October' || monthName =='November'){
+    season='Autumn';
+  }else if(monthName == 'December' || monthName=='January'|| monthName=='February'){
+    season='Winter';
+  }else{
+      season="";
+
+
+  }
+  return season;
 }
 
 module.exports = {

src/data-types/arrays/accessing-elements.js

@@ -1,19 +1,19 @@
 // do not edit this section
-const cities = ['London', 'Shanghai', 'New York', 'Delhi', 'Kuala Lumpur']
+const cities = ['London', 'Shanghai', 'New York', 'Delhi', 'Kuala Lumpur'];
 
 // TODO: write code to pass the tests
 
 // Set names equal to an array containing 'Bob', 'Jane', 'Joanna' in that order
-const names = null
+const names = ['Bob','Jane','Joanna'];
 
 // Set fourthCity to the 4th element in the cities array
-const fourthCity = ''
+const fourthCity = cities[3];
 
 // Set firstCity to the 1st element in the cities array
-const firstCity = ''
+const firstCity = cities[0];
 
 // Set lengthOfCitiesArray to the length of the cities array
-const lengthOfCitiesArray = NaN
+const lengthOfCitiesArray = cities.length;
 
 // Do not edit this exported object
 module.exports = {

src/data-types/arrays/adding-removing-elements.js

@@ -10,25 +10,27 @@ const fruits = ['Apple', 'Orange', 'Pear']
 // TODO: write code to pass the tests
 
 // Edit this code to add 'Fred' to the names array
-names.push(undefined)
+names.push('Fred');
 
 // Edit this code to add 4 to the end of the numbers array
-numbers.push(NaN)
+numbers.push(4);
 
 // Edit this code to add 'Rio' to the start of the cities array
-cities.unshift(undefined)
+cities.unshift('Rio');
 
 // Use an array method to remove the first item from colours
-colours
+colours.splice(0,1);
 
 // Use an array method to remove the last item from keys
-keys
+keys.splice(keys.length-1,1);
 
 // Use an array method to remove 'Jordon' from the countries array
-countries.splice(NaN, NaN)
+countries.splice(1, 1);
 
 // use an array method to remove the last item from the fruits array and store the value in the pear variable
-const pear = fruits.undefined
+const pear = fruits[fruits.length-1];
+fruits.splice(fruits.length-1,1);
+
 
 // Do not edit this exported object
 module.exports = {

src/data-types/numbers.js

@@ -6,22 +6,23 @@ const numThree = 32
 // TODO: Add code below using Javascript numeric operators so that the tests pass
 
 // Set this variable to numOne added to numTwo
-const numOnePlusNumTwo = NaN
+const numOnePlusNumTwo = numOne + numTwo;
 
 // Set this variable to numThree multiplied by numTwo
-const numThreeTimesNumTwo = NaN
+const numThreeTimesNumTwo = numThree* numTwo;
 
 // Set this variable to numThree divided by numOne
-const numThreeDividedByNumOne = NaN
+const numThreeDividedByNumOne = numThree/numOne;
 
 // Set this variable to numThree minus numOne
-const numThreeMinusNumOne = NaN
+const numThreeMinusNumOne = numThree - numOne;
+
 
 // Set this variable to the sum of numOne, numTwo and numThree
-const sum = NaN
+const sum = numOne + numTwo + numThree;
 
 // Set this variable to the sum of (numOne, numTwo, numThree) divided by numOne
-const numBytes = NaN
+const numBytes = sum/numOne;
 
 // do not edit the exported object.
 module.exports = {

src/data-types/objects/creating-objects.js

@@ -1,7 +1,21 @@
 // TODO: write code in this section to pass the tests. You will need to add new code
 // as well as modify some of the existing code
-const person = null
-const computer = null
+const person = {
+  name: 'Jane',
+  age:32
+}
+
+
+const computer = {
+  form: 'laptop',
+  specs:{
+    memory:'16GB',
+    storage:'1TB'
+
+  }
+
+}
+
 
 // Do not edit this exported object
 module.exports = {