Java script/week 3/Mursel aysan

week-3/1-exercises/A-array-find/exercise.js

@@ -4,12 +4,16 @@
 */
 
 // write your code here
+function x(word){
+  return word.length>7 && word[0]==='A'
+}
+
 
-var names = ["Rakesh", "Antonio", "Alexandra", "Andronicus", "Annam", "Mikey", "Anastasia", "Karim", "Ahmed"];
 
-var longNameThatStartsWithA = findLongNameThatStartsWithA(names);
+var names = ["Rakesh", "Antonio", "Alexandra", "Andronicus", "Annam", "Mikey", "Anastasia", "Karim", "Ahmed"];
 
-console.log(longNameThatStartsWithA);
+var newArr = names.find(x);
+console.log(newArr);
 
 /* EXPECTED OUTPUT */
 // "Alexandra"

week-3/1-exercises/B-array-some/exercise.js

@@ -16,6 +16,10 @@ var students = ["Islam", "Lesley", "Harun", "Rukmini"];
 var mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
 
 var pairs = pairsByIndex.map(function(indexes) {
+  if(indexes===null)
+  {
+    process.exit(1);
+  }
   var student = students[indexes[0]];
   var mentor = mentors[indexes[1]];
   return [student, mentor];

week-3/1-exercises/C-array-every/exercise.js

@@ -7,6 +7,14 @@ var group = ["Austine", "Dany", "Swathi", "Daniel"];
 
 var groupIsOnlyStudents; // complete this statement
 
+function election (newarr){
+  return (students.includes(newarr))
+
+}
+
+var groupIsOnlyStudents = group.every(election); // complete this statement
+
+
 if (groupIsOnlyStudents) {
   console.log("The group contains only students");
 } else {

week-3/1-exercises/D-array-filter/exercise.js

@@ -8,8 +8,8 @@
 
 var pairsByIndexRaw = [[0, 3], [1, 2], [2, 1], null, [1], false, "whoops"];
 
-var pairsByIndex; // Complete this statement
-
+var pairsByIndex = pairsByIndex.filter(x=>Array.isArray(x)&& x.length===2) // Complete this statement
+// completed with arrow function with filter and is Array methods.
 var students = ["Islam", "Lesley", "Harun", "Rukmini"];
 var mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
 

week-3/1-exercises/E-array-map/exercise.js

@@ -3,3 +3,6 @@
 
 var numbers = [0.1, 0.2, 0.3, 0.4, 0.5];
 
+const newArr = numbers.map(x=>x*100)
+
+console.log(newArr);

week-3/1-exercises/F-array-forEach/exercise.js

@@ -8,6 +8,22 @@
 */
 
 var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
+function fizzbuzz(){
+  for(let i = 1; i <= 100; i++){
+    if(i % 3 === 0 && i % 5 === 0){
+      console.log("FizzBuzz");
+    }else if (i % 3 === 0){
+      console.log("Fizz");
+    }else if (i % 5 === 0){
+      console.log("Buzz");
+    }else{
+      console.log(i);
+    }
+  }
+  return arr[i];
+}
+
+fizzbuzz();
 
 /* EXPECTED OUTPUT */
 

week-3/1-exercises/G-array-methods/exercise.js

@@ -4,7 +4,7 @@
 */
 
 var numbers = [3, 2, 1];
-var sortedNumbers; // complete this statement
+var sortedNumbers = numbers.sort() // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE

week-3/1-exercises/G-array-methods/exercise2.js

@@ -7,7 +7,7 @@
 var mentors = ["Daniel", "Irina", "Rares"];
 var students = ["Rukmini", "Abdul", "Austine", "Swathi"];
 
-var everyone; // complete this statement
+var everyone = mentors.concat(students)// complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE

week-3/1-exercises/H-array-methods-2/exercise.js

@@ -15,8 +15,8 @@ var everyone = [
   "Swathi"
 ];
 
-var firstFive; // complete this statement
-var lastFive; // complete this statement
+var firstFive = everyone.slice(0,5) // complete this statement
+var lastFive = everyone.slice(2,8) // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE

week-3/1-exercises/H-array-methods-2/exercise2.js

@@ -7,8 +7,13 @@
   Tip: use the string method .split() and the array method .join()
 */
 
-function capitalise(str) {}
-
+function capital (x){
+  var name = "x";
+  const nameCapitalized = x.charAt(0).toUpperCase() + x.slice(1)
+  console.log(nameCapitalized);
+  }
+  capital('daniel');
+  capital('hello');
 /* 
   DO NOT EDIT BELOW THIS LINE
   --------------------------- */

week-3/1-exercises/H-array-methods-2/exercise3.js

@@ -7,7 +7,7 @@
 var ukNations = ["Scotland", "Wales", "England", "Northern Ireland"];
 
 function isInUK(country) {
-  return; // complete this statement
+  return  country.includes(); // complete this statement
 }
 
 /* 

week-3/2-mandatory/1-oxygen-levels.js

@@ -9,9 +9,9 @@ To be safe to land on, a planet needs to have an Oxygen level between 19.5% and
 Write a function that finds the first safe oxygen level in the array - Oxygen between 19.5% and 23.5%
 */
 
-function safeLevels() {
-
-}
+function safeLevels(x) {
+    return x.find(level => level > "19.5%" && level < "23.5%");
+  }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

week-3/2-mandatory/2-bush-berries.js

@@ -9,9 +9,13 @@
 
   Use the tests to confirm which message to return
 */
-
-function bushChecker() {
-
+function pinkBerry(x){
+  return x ==="pink";
+}
+function bushChecker(x) {
+  if(x.every(pinkBerry))
+  return "Bush is safe to eat from"
+  return "Toxic! Leave bush alone!"
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

week-3/2-mandatory/3-space-colonies.js

@@ -8,8 +8,8 @@
   NOTE: don't include any element that is not a "family".
 */
 
-function colonisers() {
-
+function colonisers(x) {
+  return x.filter(x=>x[0] ==='A' && x.length >7);
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

week-3/2-mandatory/4-eligible-students.js

@@ -7,8 +7,10 @@
   - Returns an array containing only the names of the who have attended AT LEAST 8 classes
 */
 
-function eligibleStudents() {
 
+function eligibleStudents(x) {
+
+  return  x.filter(y => (y[1] >= 8 ? y[1]:'')).map(a=>a[0])
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

week-3/2-mandatory/5-journey-planner.js

@@ -7,9 +7,11 @@
   NOTE: only the names should be returned, not the means of transport.
 */
 
-function journeyPlanner() {
+function journeyPlanner(a,b) {
+  return a.filter(x => x.includes(b)).map(x => x[0])
 }
 
+
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 const londonLocations = [

week-3/2-mandatory/6-lane-names.js

@@ -4,8 +4,8 @@
   Write a function that will return all street names which contain 'Lane' in their name.
 */
 
-function getLanes() {
-
+function getLanes(y) {
+  return y.filter(x => x.includes('Lane'));
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

week-3/2-mandatory/7-password-validator.js

@@ -21,15 +21,16 @@ Expected Result:
 PasswordValidationResult=  [false, false, false, false, true]
 
 */
+let numbers = [0,1,2,3,4,5,6,7,8,9];
 
 function validatePasswords(passwords) {
-
+  return passwords.map(x => (x.length >= 5 && numbers.some(h => x.includes(h)) && x.toLowerCase() != x && x.toUpperCase() != x && (x.indexOf('!') != -1 || x.indexOf('#') != -1 || x.indexOf('$') != -1 || x.indexOf('%') != -1 || x.indexOf('.') != -1)) ? true : false)
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 const passwords1 = ["Se%5", "TktE.TJTU", "384#HsHF", "dvyyeyy!5", "tryT3729"]
-const passwords2 = ["StUFf27%", "Pl3nty!", "Jai33", "shajsaUA**&&", "Pl3nty!"]
+const passwords2 = ["StUFf27%", "Pl3nty!", "Jai33", "shajsaUA**&&", "Pl3nty"]
 
 const util = require('util');