Glasgow class 6- Yesna Omar- JavaScript 1- week 4

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

@@ -17,9 +17,12 @@ let names = [
   "Ahmed",
 ];
 
-let longNameThatStartsWithA = findLongNameThatStartsWithA(names);
+function findLongNameThatStartsWithA(array) {
+  const findedWords = array.find((word) => word.length > 7 && word[0] === "A");
+  return findedWords;
+}
 
-console.log(longNameThatStartsWithA);
+console.log(findLongNameThatStartsWithA(names));
 
 /* EXPECTED OUTPUT */
 // "Alexandra"

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

@@ -12,6 +12,10 @@ let pairsByIndex = [[0, 3], [1, 2], [2, 1], null, [3, 0]];
 // https://nodejs.org/api/process.html#process_process_exit_code
 // process.exit(1);
 
+if (pairsByIndex.some((number) => number === null)) {
+  process.exit(1);
+}
+
 let students = ["Islam", "Lesley", "Harun", "Rukmini"];
 let mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
 

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

@@ -5,7 +5,10 @@
 let students = ["Omar", "Austine", "Dany", "Swathi", "Lesley", "Rukmini"];
 let group = ["Austine", "Dany", "Swathi", "Daniel"];
 
-let groupIsOnlyStudents; // complete this statement
+function notOnlyStudent(group) {
+  return group.includes(students);
+}
+let groupIsOnlyStudents = group.every(notOnlyStudent); // complete this statement
 
 if (groupIsOnlyStudents) {
   console.log("The group contains only students");

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

@@ -8,7 +8,13 @@
 
 let pairsByIndexRaw = [[0, 3], [1, 2], [2, 1], null, [1], false, "whoops"];
 
-let pairsByIndex; // Complete this statement
+function validContent(pair) {
+  if (pair != null && pair.length === 2) {
+    return true;
+  }
+}
+
+let pairsByIndex = pairsByIndexRaw.filter(validContent); // Complete this statement
 
 let students = ["Islam", "Lesley", "Harun", "Rukmini"];
 let mentors = ["Daniel", "Irina", "Mozafar", "Luke"];
@@ -24,4 +30,4 @@ console.log(pairs);
 /* EXPECTED RESULT
 
   [ [ 'Islam', 'Luke' ], [ 'Lesley', 'Mozafar' ], [ 'Harun', 'Irina' ] ]
-*/
+*/

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

@@ -3,11 +3,15 @@
 
 let numbers = [0.1, 0.2, 0.3, 0.4, 0.5];
 
-let numbersMultipliedByOneHundred; // complete this statement
+function multiplication(number) {
+  return number * 100;
+}
+
+let numbersMultipliedByOneHundred = numbers.map(multiplication); // complete this statement
 
 console.log(numbersMultipliedByOneHundred);
 
 /* EXPECTED RESULT
 
   [10, 20, 30, 40, 50]
-*/
+*/

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

@@ -9,6 +9,20 @@
 
 let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15];
 
+function printNumber(number) {
+  if (number % 3 == 0 && number % 5 == 0) {
+    console.log("FizzBuzz");
+  } else if (number % 3 == 0) {
+    console.log("Fizz");
+  } else if (number % 5 == 0) {
+    console.log("Buzz");
+  } else {
+    console.log(number);
+  }
+}
+
+arr.forEach(printNumber);
+
 /* EXPECTED OUTPUT */
 
 /*

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

@@ -4,7 +4,8 @@
 */
 
 let numbers = [3, 2, 1];
-let sortedNumbers; // complete this statement
+
+let sortedNumbers = numbers.sort(); // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE

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

1-exercises/H-array-methods-2/README.md

@@ -27,7 +27,7 @@ function isAMentor(name) {
   return mentors.includes(name);
 }
 
-consooe.log("Is Rukmuni a mentor?");
+console.log("Is Rukmuni a mentor?");
 console.log(isAMentor("Rukmini")); // logs false
 ```
 

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); // complete this statement
+let lastFive = everyone.slice(2, 7); // complete this statement
 
 /* 
   DO NOT EDIT BELOW THIS LINE

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 result = str.split("");
+  result[0] = result[0].toUpperCase();
+  return result.join("");
+}
 
 /* 
   DO NOT EDIT BELOW THIS LINE

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); // complete this statement
 }
 
 /* 

1-exercises/I-string-replace/exercise.js

@@ -13,7 +13,10 @@
 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.replace(
+  "I like dogs. One day I went to the park and I saw 10 dogs. It was a great day.",
+  "I like cats. One night I went to the park and I saw 100000 cats. It was a brilliant night."
+);
 
 /* EXPECTED OUTPUT */
 

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);
 

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);

1-exercises/J-string-substring/exercise3.js

@@ -8,7 +8,7 @@
 
 let statement = "I do not like programming";
 
-let result = "";
+let result = statement.substring(0, 5) + statement.substring(9, 25);
 
 console.log(result);
 

2-mandatory/1-create-functions.js

@@ -3,15 +3,18 @@ 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(element) {
+  return element.slice(0, 5);
 }
 
 /*
 Write a function that:
 - Accepts an array as a parameter.
 - Returns a new array containing the same elements, except sorted.
 */
-function sortArray() {
+function sortArray(letter) {
+  let element = letter.slice();
+  return element.sort();
 }
 
 /*
@@ -24,7 +27,10 @@ Write a function that:
 - Removes any forward slashes (/) in the strings.
 - Makes the strings all lowercase.
 */
-function tidyUpString() {
+function tidyUpString(array) {
+  return array.map((newArray) =>
+    newArray.trim().replace("/", "").toLowerCase()
+  );
 }
 
 /*
@@ -33,7 +39,8 @@ Write a function that:
 - Returns a new array containing the same elements, but without the element at the passed index.
 */
 
-function remove() {
+function remove(array, index) {
+  return array.slice(0, index).concat(array.slice(index + 1));
 }
 
 /*
@@ -44,7 +51,13 @@ Write a function that:
 - Numbers greater 100 must be replaced with 100.
 */
 
-function formatPercentage() {
+function formatPercentage(array) {
+  return array.map((number) => {
+    if (number > 100) {
+      return "100%";
+    }
+    return `${Math.round(number * 100) / 100}%`;
+  });
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== */

2-mandatory/2-oxygen-levels.js

@@ -11,7 +11,14 @@
     Some string methods that might help you here are .replace() and .substring().
 */
 
-function findSafeOxygenLevel() {}
+function findSafeOxygenLevel(oxygenLevels) {
+  return oxygenLevels.find((element) => {
+    let newString = Number(element.replace("%", ""));
+    if (newString > 19.5 && newString < 23.5 && element.includes("%")) {
+      return element;
+    }
+  });
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

2-mandatory/3-bush-berries.js

@@ -23,8 +23,12 @@
 
 function isBushSafe(berryArray) {
   //Write your code here
+  if (berryArray.every((berry) => berry === "pink")) {
+    return "Bush is safe to eat from";
+  } else {
+    return "Toxic! Leave bush alone!";
+  }
 }
-
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 test("isBushSafe finds toxic busy", () => {

2-mandatory/4-space-colonies.js

@@ -15,7 +15,20 @@
 
 */
 
-function getSettlers() {}
+function getSettlers(voyager) {
+  return voyager.filter((word) => {
+    if (word.includes("family") && word.startsWith("A")) {
+      return word;
+    }
+  });
+
+  // const findedWords = voyager.find(
+  //   (word) => { if (word.includes("family") && word.startsWith("A")){
+  //     return word;
+  //   }
+  // );
+  // return findedWords;
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

2-mandatory/5-eligible-students.js

@@ -7,7 +7,15 @@
   - Returns an array containing only the names of the who have attended AT LEAST 8 classes
 */
 
-function getEligibleStudents() {}
+function getEligibleStudents(classAttendance) {
+  return classAttendance
+    .filter((student) => {
+      if (student[1] > 7) {
+        return student[0];
+      }
+    })
+    .map((student) => student[0]);
+}
 
 /* ======= TESTS - DO NOT MODIFY ===== */
 

2-mandatory/6-journey-planner.js

@@ -20,8 +20,8 @@
 function checkCodeIsThere(stringText) {
   let magicWord = "code";
   //edit code below
-  if (stringText) {
-    return stringText;
+  if (stringText.includes(magicWord)) {
+    return stringText.indexOf(magicWord);
   } else {
     return "Not found";
   }
@@ -64,7 +64,9 @@ function checkCodeIsThere(stringText) {
 
   Hint: Use the corresponding array method to split the array.
 */
-function getTransportModes() {}
+function getTransportModes(array) {
+  return array.slice(1);
+}
 
 /*
   Implement the function isAccessibleByTransportMode that
@@ -81,7 +83,13 @@ function getTransportModes() {}
 
   Hint: Use the corresponding array method to decide if an element is included in an array.
 */
-function isAccessibleByTransportMode() {}
+function isAccessibleByTransportMode(array, string) {
+  if (array.includes(string)) {
+    return true;
+  } else {
+    return false;
+  }
+}
 
 /*
   Implement the function getLocationName that
@@ -92,7 +100,11 @@ function isAccessibleByTransportMode() {}
    - Returns the name of the location
       e.g: "Tower Bridge"
 */
-function getLocationName() {}
+function getLocationName(locations) {
+  if (locations) {
+    return locations[0];
+  }
+}
 
 /*
  We arrived at the final method. it won't take long if you use the previously implemented functions wisely.
@@ -123,8 +135,11 @@ function getLocationName() {}
 */
 function journeyPlanner(locations, transportMode) {
   // Implement the function body
+  let findLocations = locations.filter((location) =>
+    location.includes(transportMode)
+  );
+  return findLocations.map((location) => location[0]);
 }
-
 /* ======= TESTS - DO NOT MODIFY ===== */
 
 const string1 = "I Love coding and perfect code makes me happy";