Finished final assessment (Jordan)

problems/countNumbers.js

@@ -12,8 +12,14 @@
  * returns { 99: 2, 11: 1, 12: 1, 13: 1, 58: 1 }
  */
 
-function countNumbers() {
-
+function countNumbers(arr) {
+    let i = 0
+    let objCounter = {}
+    while(i < arr.length) {
+        objCounter[arr[i]] = (objCounter[arr[i]] || 0) + 1
+        i++
+    }
+    return objCounter
 }
 
 

problems/getCountriesSortedByPopulation.js

@@ -10,8 +10,20 @@
 * 
 */
 
-function getCountriesSortedByPopulation() {
-
+function getCountriesSortedByPopulation(arr) {
+    let newArr = []
+    let finalArr = []
+    let i = 0
+    let a = 0
+    while(i < arr.length){
+        newArr[i] = arr[i]
+        i++
+    }
+    newArr.sort((a, b) => b.population - a.population)
+    for(let i in newArr) {
+        finalArr[i] = newArr[i].country
+    }
+    return finalArr
 }
 
 module.exports = getCountriesSortedByPopulation

problems/isOdd.js

@@ -9,8 +9,13 @@
 * ex: isOdd(75); // true
 */
 
-function isOdd() {
-
+function isOdd(n) {
+    if((n % 2) === 1){
+        return true
+    }
+    else{
+        return false
+    }
 }
 
 module.exports = isOdd

problems/numberOfDigits.js

@@ -7,8 +7,9 @@
 
 */
 
-function numberOfDigits() {
-
+function numberOfDigits(n) {
+    let i = n.toString()
+    return i.length
 }
 
 module.exports = numberOfDigits

problems/removeEvenStrings.js

@@ -19,8 +19,16 @@
 * returns: []
 */
 
-function removeEvenStrings() {
-
+function removeEvenStrings(arr) {
+    let newArr = []
+    let i = 0
+    while(i < arr.length){
+        if((arr[i].length % 2) === 1){
+            newArr.push(arr[i])
+        }
+        i++
+    }
+    return newArr
 }
 
 module.exports = removeEvenStrings

problems/removeNumbersAtOddIndices.js

@@ -10,8 +10,16 @@
 * ex: removeNumbersAtOddIndices([5, 4, 3, 2, 1]);
 * returns: [5, 3, 1]
 */
-function removeNumbersAtOddIndices() {
-
+function removeNumbersAtOddIndices(arr) {
+    let newArr = []
+    let i = 0
+    while(i < arr.length){
+        if((i % 2) === 0){
+            newArr.push(arr[i])
+        }
+        i++
+    }
+    return newArr
 }
 
 module.exports = removeNumbersAtOddIndices

problems/removeOddNumbers.js

@@ -14,8 +14,16 @@
 * ex: removeOddNumbers([2, 4, 6])
 * returns: [2, 4, 6]
 */
-function removeOddNumbers() {
-
+function removeOddNumbers(arr) {
+    let newArr = []
+    let i = 0
+    while(i < arr.length){
+        if((arr[i] % 2) === 0){
+            newArr.push(arr[i])
+        }
+        i++
+    }
+    return newArr
 }
 
 module.exports = removeOddNumbers

problems/removeVowels.js

@@ -14,8 +14,18 @@
 *
 */
 
-function removeVowels() {
-
+function removeVowels(str) {
+    let i = 0
+    let vowelsRemoved = ''
+    while(i < str.length) {
+        if((str[i] !== 'a') && (str[i] !== 'e') && (str[i] !== 'i') && (str[i] !== 'o') && (str[i] !== 'u')) {
+            if((str[i] !== 'A') && (str[i] !== 'E') && (str[i] !== 'I') && (str[i] !== 'O') && (str[i] !== 'U')) {
+                vowelsRemoved = vowelsRemoved + str[i]
+            }
+        }
+        i++
+    }
+    return vowelsRemoved
 }
 
 module.exports = removeVowels

problems/sevenBoom.js

@@ -11,8 +11,19 @@
 * 17 is also replaced with 'BOOM' because it contains a 7.
 */
 
-function sevenBoom() {
-
+function sevenBoom(n) {
+    let arr = []
+    let  i = 1
+    while(i <= n){
+        if(((i % 7) === 0) || (i % 10) === 7){
+            arr[i-1] = "BOOM"
+        }
+        else{
+            arr[i-1] = i
+        }
+        i++
+    }
+    return arr
 }
 
 module.exports = sevenBoom

problems/smallest.js

@@ -14,8 +14,14 @@
 * returns 1 (does not matter if it is the first or second 1)
 */
 
-function smallest() {
-
+function smallest(arr) {
+    let smallestNum = arr[0]
+  for(let i = 0; i < arr.length; i++) {
+    if(arr[i]< smallestNum) {
+      smallestNum = arr[i]
+    }
+  }
+  return smallestNum
 }
 
 module.exports = smallest