From 7cf20c4c81236c8078d8110a966d8dea4697c308 Mon Sep 17 00:00:00 2001
From: siveromar <109865820+siveromar@users.noreply.github.com>
Date: Sat, 25 Mar 2023 02:20:34 +0000
Subject: [PATCH 1/2] week3

---
 1-exercises/A-array-find/exercise.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/1-exercises/A-array-find/exercise.js b/1-exercises/A-array-find/exercise.js
index 35902fed..9ae4de60 100644
--- a/1-exercises/A-array-find/exercise.js
+++ b/1-exercises/A-array-find/exercise.js
@@ -4,7 +4,6 @@
 */
 
 // write your code here
-
 let names = [
   "Rakesh",
   "Antonio",
@@ -16,10 +15,16 @@ let names = [
   "Karim",
   "Ahmed",
 ];
+// === : 
+function findLongNameThatStartsWithA(array){
+  const findedWords = array.find(word => word.length>7 && word[0]==='A')
+  return findedWords;
+}
 
-let longNameThatStartsWithA = findLongNameThatStartsWithA(names);
+// let longNameThatStartsWithA = findLongNameThatStartsWithA(names);
+// console.log(longNameThatStartsWithA);
 
-console.log(longNameThatStartsWithA);
+console.log(findLongNameThatStartsWithA(names));
 
 /* EXPECTED OUTPUT */
 // "Alexandra"

From 8504c157a30886d659897d78aea6e0cec38be8bf Mon Sep 17 00:00:00 2001
From: siveromar <109865820+siveromar@users.noreply.github.com>
Date: Tue, 4 Apr 2023 02:53:35 +0100
Subject: [PATCH 2/2] js.week4

---
 1-exercises/A-array-find/exercise.js        |  4 +--
 1-exercises/B-array-some/exercise.js        | 12 ++++++++
 1-exercises/C-array-every/exercise.js       |  7 ++++-
 1-exercises/D-array-filter/exercise.js      |  3 +-
 1-exercises/E-array-map/exercise.js         |  4 +--
 1-exercises/F-array-forEach/exercise.js     | 10 ++++++
 1-exercises/G-array-methods/exercise.js     |  2 +-
 1-exercises/G-array-methods/exercise2.js    |  2 +-
 1-exercises/H-array-methods-2/exercise.js   |  4 +--
 1-exercises/H-array-methods-2/exercise2.js  |  6 +++-
 1-exercises/H-array-methods-2/exercise3.js  |  2 +-
 1-exercises/I-string-replace/exercise.js    |  6 +++-
 1-exercises/J-string-substring/exercise.js  |  2 +-
 1-exercises/J-string-substring/exercise2.js | 10 +++---
 1-exercises/J-string-substring/exercise3.js |  4 +--
 2-mandatory/1-create-functions.js           | 34 +++++++++++++++++----
 2-mandatory/2-oxygen-levels.js              | 18 +++++++++--
 2-mandatory/3-bush-berries.js               |  7 +++++
 2-mandatory/4-space-colonies.js             |  5 +--
 2-mandatory/5-eligible-students.js          |  5 ++-
 2-mandatory/6-journey-planner.js            | 29 ++++++++++--------
 2-mandatory/7-lane-names.js                 |  6 ++--
 2-mandatory/8-password-validator.js         | 16 +++++++++-
 23 files changed, 149 insertions(+), 49 deletions(-)

diff --git a/1-exercises/A-array-find/exercise.js b/1-exercises/A-array-find/exercise.js
index 9ae4de60..c4d7cad8 100644
--- a/1-exercises/A-array-find/exercise.js
+++ b/1-exercises/A-array-find/exercise.js
@@ -17,8 +17,8 @@ let names = [
 ];
 // === : 
 function findLongNameThatStartsWithA(array){
-  const findedWords = array.find(word => word.length>7 && word[0]==='A')
-  return findedWords;
+  const findWords = array.find(word => word.length>7 && word[0]==='A')
+  return findWords;
 }
 
 // let longNameThatStartsWithA = findLongNameThatStartsWithA(names);
diff --git a/1-exercises/B-array-some/exercise.js b/1-exercises/B-array-some/exercise.js
index fddc69ee..6294eee4 100644
--- a/1-exercises/B-array-some/exercise.js
+++ b/1-exercises/B-array-some/exercise.js
@@ -15,6 +15,13 @@ let pairsByIndex = [[0, 3], [1, 2], [2, 1], null, [3, 0]];
 let students = ["Islam", "Lesley", "Harun", "Rukmini"];
 let mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
 
+function program(number){
+if (number===null){
+  process.exit(1);
+}
+}
+pairsByIndex.some(program);
+
 let pairs = pairsByIndex.map(function (indexes) {
   let student = students[indexes[0]];
   let mentor = mentors[indexes[1]];
@@ -22,3 +29,8 @@ let pairs = pairsByIndex.map(function (indexes) {
 });
 
 console.log(pairs);
+
+
+  
+ 
+  
diff --git a/1-exercises/C-array-every/exercise.js b/1-exercises/C-array-every/exercise.js
index 347b9632..900911e9 100644
--- a/1-exercises/C-array-every/exercise.js
+++ b/1-exercises/C-array-every/exercise.js
@@ -5,7 +5,12 @@
 let students = ["Omar", "Austine", "Dany", "Swathi", "Lesley", "Rukmini"];
 let group = ["Austine", "Dany", "Swathi", "Daniel"];
 
-let groupIsOnlyStudents; // complete this statement
+  function checkGroup(groups){
+  return groups.includes(students);
+
+}
+let groupIsOnlyStudents= group.every(checkGroup);
+// complete this statement
 
 if (groupIsOnlyStudents) {
   console.log("The group contains only students");
diff --git a/1-exercises/D-array-filter/exercise.js b/1-exercises/D-array-filter/exercise.js
index 51837028..1cc6edac 100644
--- a/1-exercises/D-array-filter/exercise.js
+++ b/1-exercises/D-array-filter/exercise.js
@@ -8,7 +8,8 @@
 
 let pairsByIndexRaw = [[0, 3], [1, 2], [2, 1], null, [1], false, "whoops"];
 
-let pairsByIndex; // Complete this statement
+let pairsByIndex=pairsByIndexRaw.filter(item => 
+  Array.isArray(item) && item.length===2); // Complete this statement
 
 let students = ["Islam", "Lesley", "Harun", "Rukmini"];
 let mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
diff --git a/1-exercises/E-array-map/exercise.js b/1-exercises/E-array-map/exercise.js
index 5a157279..d5248386 100644
--- a/1-exercises/E-array-map/exercise.js
+++ b/1-exercises/E-array-map/exercise.js
@@ -3,8 +3,8 @@
 
 let numbers = [0.1, 0.2, 0.3, 0.4, 0.5];
 
-let numbersMultipliedByOneHundred; // complete this statement
-
+ // complete this statement
+let numbersMultipliedByOneHundred = numbers.map(number => number *100);
 console.log(numbersMultipliedByOneHundred);
 
 /* EXPECTED RESULT
diff --git a/1-exercises/F-array-forEach/exercise.js b/1-exercises/F-array-forEach/exercise.js
index 985068cc..c7b55ec4 100644
--- a/1-exercises/F-array-forEach/exercise.js
+++ b/1-exercises/F-array-forEach/exercise.js
@@ -9,6 +9,16 @@
 
 let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
 
+arr.forEach(numbers => {
+  if(numbers % 3 === 0 && numbers % 5 === 0){
+    console.log("FizzBuzz");}
+      else if(numbers % 3 === 0){
+        console.log("Fizz");}
+     else if(numbers % 5 === 0){
+      console.log("Buzz");}
+      else{
+        console.log(numbers);
+      }});
 /* EXPECTED OUTPUT */
 
 /*
diff --git a/1-exercises/G-array-methods/exercise.js b/1-exercises/G-array-methods/exercise.js
index 4367ef6e..b9b5621f 100644
--- a/1-exercises/G-array-methods/exercise.js
+++ b/1-exercises/G-array-methods/exercise.js
@@ -4,7 +4,7 @@
 */
 
 let numbers = [3, 2, 1];
-let sortedNumbers; // complete this statement
+let sortedNumbers = numbers.sort();// complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/1-exercises/G-array-methods/exercise2.js b/1-exercises/G-array-methods/exercise2.js
index 4c68c3a6..5f1e674a 100644
--- a/1-exercises/G-array-methods/exercise2.js
+++ b/1-exercises/G-array-methods/exercise2.js
@@ -7,7 +7,7 @@
 let mentors = ["Daniel", "Irina", "Rares"];
 let students = ["Rukmini", "Abdul", "Austine", "Swathi"];
 
-let everyone; // complete this statement
+let everyone =mentors.concat(students) // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/1-exercises/H-array-methods-2/exercise.js b/1-exercises/H-array-methods-2/exercise.js
index 59c5daa7..fdee733e 100644
--- a/1-exercises/H-array-methods-2/exercise.js
+++ b/1-exercises/H-array-methods-2/exercise.js
@@ -15,8 +15,8 @@ let everyone = [
   "Swathi",
 ];
 
-let firstFive; // complete this statement
-let lastFive; // complete this statement
+let firstFive = everyone.slice(0, 5); 
+let lastFive = everyone.slice(everyone.length - 5, everyone.length); 
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/1-exercises/H-array-methods-2/exercise2.js b/1-exercises/H-array-methods-2/exercise2.js
index 14bb4318..593187ca 100644
--- a/1-exercises/H-array-methods-2/exercise2.js
+++ b/1-exercises/H-array-methods-2/exercise2.js
@@ -7,7 +7,11 @@
   Tip: use the string method .split() and the array method .join()
 */
 
-function capitalise(str) {}
+function capitalise(str) {
+  let splittedArr = str.split("");
+  splittedArr[0] = splittedArr[0].toUpperCase();
+  return splittedArr.join("");
+   }
 
 /* 
   DO NOT EDIT BELOW THIS LINE
diff --git a/1-exercises/H-array-methods-2/exercise3.js b/1-exercises/H-array-methods-2/exercise3.js
index c8e079e4..06f53873 100644
--- a/1-exercises/H-array-methods-2/exercise3.js
+++ b/1-exercises/H-array-methods-2/exercise3.js
@@ -7,7 +7,7 @@
 let ukNations = ["Scotland", "Wales", "England", "Northern Ireland"];
 
 function isInUK(country) {
-  return; // complete this statement
+ return ukNations.includes(country);
 }
 
 /* 
diff --git a/1-exercises/I-string-replace/exercise.js b/1-exercises/I-string-replace/exercise.js
index 3f7104d7..f8702c38 100644
--- a/1-exercises/I-string-replace/exercise.js
+++ b/1-exercises/I-string-replace/exercise.js
@@ -13,7 +13,11 @@
 let story =
   "I like dogs. One day I went to the park and I saw 10 dogs. It was a great day.";
 
-let result = story.replace("", "");
+  let result = story;
+  result = result.replace(/dogs/gi, "cats");
+  result = result.replace(/day/gi, "night");
+  result = result.replace(/10/gi, "100000");
+  result = result.replace(/great/gi, "brilliant");
 
 /* EXPECTED OUTPUT */
 
diff --git a/1-exercises/J-string-substring/exercise.js b/1-exercises/J-string-substring/exercise.js
index 4624db68..35c09931 100644
--- a/1-exercises/J-string-substring/exercise.js
+++ b/1-exercises/J-string-substring/exercise.js
@@ -6,7 +6,7 @@
 
 let statement = "I like programming and dogs";
 
-statement = statement.substring();
+statement = statement.substring(0,18);
 
 console.log(statement);
 
diff --git a/1-exercises/J-string-substring/exercise2.js b/1-exercises/J-string-substring/exercise2.js
index a1d9bf62..cb541c6a 100644
--- a/1-exercises/J-string-substring/exercise2.js
+++ b/1-exercises/J-string-substring/exercise2.js
@@ -14,11 +14,11 @@ let names = [
   "Arron Graham",
 ];
 
-names[0] = names[0].substring();
-names[1] = names[1].substring();
-names[2] = names[2].substring();
-names[3] = names[3].substring();
-names[4] = names[4].substring();
+names[0] = names[0].substring(0, 6);
+names[1] = names[1].substring(0, 7);
+names[2] = names[2].substring(0, 4);
+names[3] = names[3].substring(0, 4);
+names[4] = names[4].substring(0, 5);
 
 names.forEach((name) => {
   console.log(name);
diff --git a/1-exercises/J-string-substring/exercise3.js b/1-exercises/J-string-substring/exercise3.js
index 14f77417..6efbf5e8 100644
--- a/1-exercises/J-string-substring/exercise3.js
+++ b/1-exercises/J-string-substring/exercise3.js
@@ -8,8 +8,8 @@
 
 let statement = "I do not like programming";
 
-let result = "";
-
+let result =
+statement.substring(0, 4) + statement.substring(8, statement.length);
 console.log(result);
 
 /* EXPECTED OUTPUT 
diff --git a/2-mandatory/1-create-functions.js b/2-mandatory/1-create-functions.js
index 6df12961..c9165efb 100644
--- a/2-mandatory/1-create-functions.js
+++ b/2-mandatory/1-create-functions.js
@@ -3,7 +3,9 @@ Write a function that:
 - Accepts an array as a parameter.
 - Returns a new array containing the first five elements of the passed array.
 */
-function first5() {
+{function first5(arr) {
+  let newArr =arr.slice(0,5);
+  return newArr;}
 }
 
 /*
@@ -11,7 +13,8 @@ Write a function that:
 - Accepts an array as a parameter.
 - Returns a new array containing the same elements, except sorted.
 */
-function sortArray() {
+function sortArray(arr) {
+  return arr.slice().sort();
 }
 
 /*
@@ -24,7 +27,14 @@ Write a function that:
 - Removes any forward slashes (/) in the strings.
 - Makes the strings all lowercase.
 */
-function tidyUpString() {
+function tidyUpString(arr) {
+  newArr = arr.map(function (string) {
+    string = string.trim();
+    string = string.replace("/", "");
+    string = string.toLowerCase();
+    return string;
+  });
+  return newArr;
 }
 
 /*
@@ -33,9 +43,15 @@ Write a function that:
 - Returns a new array containing the same elements, but without the element at the passed index.
 */
 
-function remove() {
+function remove(arr, index) {
+  let newArr = [];
+  for (let i = 0; i < arr.length; i++) {
+    if (i != index) {
+      newArr.push(arr[i]);
+    }
+  }
+  return newArr;
 }
-
 /*
 Write a function that:
 - Takes an array of numbers as input.
@@ -44,7 +60,13 @@ Write a function that:
 - Numbers greater 100 must be replaced with 100.
 */
 
-function formatPercentage() {
+function formatPercentage(numbers) {
+  return numbers.map((number) => {
+    if (number > 100) {
+      return "100%";
+    }
+    return `${Math.round(number * 100) / 100}%`
+  });
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
diff --git a/2-mandatory/2-oxygen-levels.js b/2-mandatory/2-oxygen-levels.js
index 5711c5e5..5a2e9c63 100644
--- a/2-mandatory/2-oxygen-levels.js
+++ b/2-mandatory/2-oxygen-levels.js
@@ -10,9 +10,21 @@
 
     Some string methods that might help you here are .replace() and .substring().
 */
-
-function findSafeOxygenLevel() {}
-
+function findSafeOxygenLevel(oxygenLevels) {
+  let firstProperPlanet = "" ;
+  for (const oxygenlevel of oxygenLevels) {
+    if(oxygenlevel.includes('%')) {
+      const oxygenlevelNum = Number(oxygenlevel.replace('%', ''));
+      if (oxygenlevelNum > 19.5 && oxygenlevelNum < 23.5){
+        firstProperPlanet = oxygenlevel;
+        break
+    }} else {
+      continue
+    } 
+  }
+  let output = firstProperPlanet === "" ? undefined : firstProperPlanet;
+  return output;
+}
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("findSafeOxygenLevel function works - case 1", () => {
diff --git a/2-mandatory/3-bush-berries.js b/2-mandatory/3-bush-berries.js
index b434a507..90dee071 100644
--- a/2-mandatory/3-bush-berries.js
+++ b/2-mandatory/3-bush-berries.js
@@ -23,6 +23,13 @@
 
 function isBushSafe(berryArray) {
   //Write your code here
+  let safeBush = berryArray.every(berry => berry.includes("pink"))
+  if(safeBush){
+    return "Bush is safe to eat from"
+  }else{
+    return  "Toxic! Leave bush alone!"
+
+  }
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */
diff --git a/2-mandatory/4-space-colonies.js b/2-mandatory/4-space-colonies.js
index 30095213..3e0b48b0 100644
--- a/2-mandatory/4-space-colonies.js
+++ b/2-mandatory/4-space-colonies.js
@@ -15,8 +15,9 @@
   
 */
 
-function getSettlers() {}
-
+function getSettlers(allPeople) {
+  return allPeople.filter(person => person.includes('family') && person.startsWith('A'));
+}
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("getSettlers function works", () => {
diff --git a/2-mandatory/5-eligible-students.js b/2-mandatory/5-eligible-students.js
index f92478e0..21d96ebc 100644
--- a/2-mandatory/5-eligible-students.js
+++ b/2-mandatory/5-eligible-students.js
@@ -7,7 +7,10 @@
   - Returns an array containing only the names of the who have attended AT LEAST 8 classes
 */
 
-function getEligibleStudents() {}
+function getEligibleStudents(students) {
+  const eligibleStudents= students.filter(attendance => attendance[1]>=8)
+  return eligibleStudents.map(names=> names[0]);
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/2-mandatory/6-journey-planner.js b/2-mandatory/6-journey-planner.js
index 25a14083..6cd7b1a7 100644
--- a/2-mandatory/6-journey-planner.js
+++ b/2-mandatory/6-journey-planner.js
@@ -20,12 +20,11 @@
 function checkCodeIsThere(stringText) {
   let magicWord = "code";
   //edit code below
-  if (stringText) {
-    return stringText;
-  } else {
-    return "Not found";
-  }
-}
+  if (stringText.includes(magicWord)) {
+    return stringText.indexOf(magicWord)
+}else {
+  return "Not found";
+}}
 
 /*
   I am new to London and would like to know what transport I can take to different famous locations.
@@ -64,8 +63,9 @@ function checkCodeIsThere(stringText) {
 
   Hint: Use the corresponding array method to split the array.
 */
-function getTransportModes() {}
-
+function getTransportModes(londonLocations) {
+  return londonLocations.slice(1)
+}
 /*
   Implement the function isAccessibleByTransportMode that
 
@@ -81,7 +81,9 @@ function getTransportModes() {}
 
   Hint: Use the corresponding array method to decide if an element is included in an array.
 */
-function isAccessibleByTransportMode() {}
+function isAccessibleByTransportMode(transportModes, transport) {
+  return transportModes.includes(transport);
+}
 
 /*
   Implement the function getLocationName that
@@ -92,8 +94,9 @@ function isAccessibleByTransportMode() {}
    - Returns the name of the location
       e.g: "Tower Bridge"
 */
-function getLocationName() {}
-
+function getLocationName(locations) {
+  return locations.at(0)
+}
 /*
  We arrived at the final method. it won't take long if you use the previously implemented functions wisely.
 
@@ -122,8 +125,8 @@ function getLocationName() {}
   Advanced challange: try to use arrow function when invoking an array method.
 */
 function journeyPlanner(locations, transportMode) {
-  // Implement the function body
-}
+  const accessibleLocations= locations.filter( el=> el.includes(transportMode))
+return accessibleLocations.map(getLocationName)}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
diff --git a/2-mandatory/7-lane-names.js b/2-mandatory/7-lane-names.js
index 40c31b68..4499559d 100644
--- a/2-mandatory/7-lane-names.js
+++ b/2-mandatory/7-lane-names.js
@@ -6,8 +6,10 @@
   HINT: string and array methods that could be helpful (indexOf, filter)
 */
 
-function getLanes() {}
-
+function getLanes(streets) {
+  return streets.filter(street => 
+    street.includes("Lane"))
+}
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("getLanes function works", () => {
diff --git a/2-mandatory/8-password-validator.js b/2-mandatory/8-password-validator.js
index dc3e84d6..e3b731bf 100644
--- a/2-mandatory/8-password-validator.js
+++ b/2-mandatory/8-password-validator.js
@@ -23,7 +23,17 @@ PasswordValidationResult=  [false, false, false, false, true]
 
 */
 
-function validatePasswords(passwords) {}
+function validatePasswords(passwords) {
+  return passwords.map(
+    (el,index) =>
+    containsLowercaseLetter(el) &&
+    containsUppercaseLetter(el) && 
+    containsNumber(el) && 
+    containsSymbol(el) &&
+    atLeastFiveCharacter(el) && 
+    passwords.indexOf(el) === index 
+  );
+    }
 
 // Returns true if string contains at least one uppercase letter.
 function containsUppercaseLetter(string) {
@@ -44,9 +54,13 @@ function containsNumber(string) {
 function containsSymbol(string) {
   return /[!#$%.*&]/.test(string);
 }
+function atLeastFiveCharacter(string){
+  return string.length>=5
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 
+
 test("Example 1", () => {
   expect(
     validatePasswords([