CodeYourFuture · Mohammedal-abdulhamid · Aug 1, 2021 · Aug 2, 2021 · Dec 10, 2021 · Dec 10, 2021
diff --git a/mandatory/1-writers.js b/mandatory/1-writers.js
@@ -55,7 +55,7 @@ let writers = [
     occupation: "writer",
     age: 49,
     alive: true,
-  }
+  },
 ];
 
 /*
@@ -66,10 +66,16 @@ Exercise 1:
 
   "Hi, my name is {firstName} {lastName}. I am {age} years old, and work as a {occupation}."
 */
+//var result = writers.map(logAllWriters);
 function logAllWriters() {
-  // write your code to log all writers here
-};
-
+  for (var i = 0; i < writers.length; i++) {
+    console.log(
+      `Hi, my name is ${writers[i].firstName} ${writers[i].lastName}. I am ${writers[i].age} years old, and work as a ${writers[i].occupation}.`
+    );
+  }
+}
+//console.log(logAllWriters());
+logAllWriters();
 /*
 Exercise 2:
 
@@ -78,10 +84,22 @@ Exercise 2:
 
   "Writer {firstName} {lastName} died at {age} years old."
 */
-
+//var notAlive = writers.filter(logDeadWritersInTheirForties);
 function logDeadWritersInTheirForties() {
-  // write your code here
+  for (var i = 0; i < writers.length; i++) {
+    if (
+      50 > writers[i].age &&
+      writers[i].age >= 40 &&
+      writers[i].alive === false
+    ) {
+      console.log(
+        `Writer ${writers[i].firstName} ${writers[i].lastName} died at ${writers[i].age} years old.`
+      );
+    }
+  }
 }
+logDeadWritersInTheirForties();
+// write your code here
 
 /*
 Exercise 3:
@@ -92,38 +110,51 @@ Exercise 3:
 */
 
 function logAliveWritersInTheirForties() {
-  // write your code here
+  for (var i = 0; i < writers.length; i++) {
+    if (
+      writers[i].age >= 40 &&
+      writers[i].age <= 49 &&
+      writers[i].alive === true
+    ) {
+      console.log(
+        `Hi, my name is ${writers[i].firstName} ${writers[i].lastName}. I am ${writers[i].age} years old.`
+      );
+    }
+  }
 }
-
-/* ======= TESTS - DO NOT MODIFY ===== 
-- To run the tests for this exercise, run `npm test -- --testPathPattern 1-writers.js`
+logAliveWritersInTheirForties();
+/* ======= TESTS - DO NOT MODIFY ===== npm test -- --testPathPattern 1-writers.js
+- To run the tests for this exercise, run ``
 - To run all exercises/tests in the mandatory folder, run `npm test`
 - (Reminder: You must have run `npm install` one time before this will work!)
 */
 
-test("exercise 1", () => expectFunctionToLog(logAllWriters, [
-  "Hi, my name is Virginia Woolf. I am 59 years old, and work as a writer.",
-  "Hi, my name is Zadie Smith. I am 40 years old, and work as a writer.",
-  "Hi, my name is Jane Austen. I am 41 years old, and work as a writer.",
-  "Hi, my name is Bell Hooks. I am 63 years old, and work as a writer.",
-  "Hi, my name is Yukiko Motoya. I am 49 years old, and work as a writer."
-]));
-
-test("exercise 2", () => expectFunctionToLog(logDeadWritersInTheirForties, [
-  "Writer Jane Austen died at 41 years old."
-]));
-
-test("exercise 3", () => expectFunctionToLog(logAliveWritersInTheirForties, [
-  "Hi, my name is Zadie Smith. I am 40 years old.",
-  "Hi, my name is Yukiko Motoya. I am 49 years old."
-]));
+test("exercise 1", () =>
+  expectFunctionToLog(logAllWriters, [
+    "Hi, my name is Virginia Woolf. I am 59 years old, and work as a writer.",
+    "Hi, my name is Zadie Smith. I am 40 years old, and work as a writer.",
+    "Hi, my name is Jane Austen. I am 41 years old, and work as a writer.",
+    "Hi, my name is Bell Hooks. I am 63 years old, and work as a writer.",
+    "Hi, my name is Yukiko Motoya. I am 49 years old, and work as a writer.",
+  ]));
+
+test("exercise 2", () =>
+  expectFunctionToLog(logDeadWritersInTheirForties, [
+    "Writer Jane Austen died at 41 years old.",
+  ]));
+
+test("exercise 3", () =>
+  expectFunctionToLog(logAliveWritersInTheirForties, [
+    "Hi, my name is Zadie Smith. I am 40 years old.",
+    "Hi, my name is Yukiko Motoya. I am 49 years old.",
+  ]));
 
 function expectFunctionToLog(f, values) {
-    const consoleLogSpy = jest.spyOn(console, 'log');
-    f();
-    expect(consoleLogSpy).toBeCalledTimes(values.length);
-    values.forEach((value, i) => {
-      expect(consoleLogSpy).nthCalledWith(i+1, value);
-    });
-    consoleLogSpy.mockRestore();
-};
+  const consoleLogSpy = jest.spyOn(console, "log");
+  f();
+  expect(consoleLogSpy).toBeCalledTimes(values.length);
+  values.forEach((value, i) => {
+    expect(consoleLogSpy).nthCalledWith(i + 1, value);
+  });
+  consoleLogSpy.mockRestore();
+}
diff --git a/mandatory/10-cheap-diner.js b/mandatory/10-cheap-diner.js
@@ -28,9 +28,41 @@ chosenMeal(emptyArray)
 Should give the answer "Nothing :("
 
 **/
+let setOne = [
+  { name: "Turkey", price: 8.99 },
+  { name: "Chicken", price: 13.99 },
+  { name: "Lobster", price: 10.99 },
+];
+let emptyArray = [];
+let priceArray = [];
 
 function chooseMeal(mealArray) {
+
+ for( var i =0; i < mealArray.length; i ++){
+     priceArray.push(mealArray[i].price);
 }
+let sortedPriceArray = priceArray.sort(function(a, b){return a-b});
+  if (mealArray.length >= 2) {
+      let indexOfPrice =mealArray.indexOf(sortedPriceArray[1]);
+     console.log(mealArray[indexOfPrice].name);
+  }
+   console.log(chooseMeal(setOne));
+
+  /*} else if ((array.length = 1)) {
+    emptyArray.push(mealArray[0].price);
+    console.log(emptyArray);
+  } else {
+    return null;
+  }
+   console.log(chooseMeal(setOne));
+
+
+
+
+
+
+
+ //console.log(chooseMeal(setOne));
 
 /* ======= TESTS - DO MODIFY (!!!) =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 10-cheap-diner.js`

diff --git a/mandatory/2-eligible-students.js b/mandatory/2-eligible-students.js
@@ -18,27 +18,53 @@
     (see tests to confirm how this data will be structured)
   - Returns an array containing only the names of the who have attended AT LEAST 8 classes
  */
+var students = [
+  { name: "Ahmed", attendance: 8 },
+  { name: "Clement", attendance: 10 },
+  { name: "Elamin", attendance: 6 },
+  { name: "Adam", attendance: 7 },
+  { name: "Tayoa", attendance: 11 },
+  { name: "Nina", attendance: 10 },
+];
+// var studentAttendence = students.filter(function eligibleStudents(element) {
+//   var students = [];
+//   if (element.attendance >= 8) {
+//     return students.push(element.name);
+//   }
+// });
 
-function eligibleStudents(attendances) {
-
+function eligibleStudents(studentsArray) {
+  let studentAttendance = [];
+  for (var i = 0; i < studentsArray.length; i++) {
+    if (studentsArray[i].attendance >= 8) {
+      studentAttendance.push(studentsArray[i].name);
+    }
+  }
+  return studentAttendance;
 }
 
+console.log(eligibleStudents(students));
+
 /* ======= TESTS - DO NOT MODIFY ===== 
 - To run the tests for this exercise, run `npm test -- --testPathPattern 2-eligible-students.js`
 - To run all exercises/tests in the mandatory folder, run `npm test`
 - (Reminder: You must have run `npm install` one time before this will work!)
 */
 
 const attendances = [
-    {name: "Ahmed", attendance: 8},
-    {name: "Clement", attendance: 10},
-    {name: "Elamin", attendance: 6},
-    {name: "Adam", attendance: 7},
-    {name: "Tayoa", attendance: 11},
-    {name: "Nina", attendance: 10},
+  { name: "Ahmed", attendance: 8 },
+  { name: "Clement", attendance: 10 },
+  { name: "Elamin", attendance: 6 },
+  { name: "Adam", attendance: 7 },
+  { name: "Tayoa", attendance: 11 },
+  { name: "Nina", attendance: 10 },
 ];
-  
+
 test("eligibleStudents function works", () => {
-    expect(eligibleStudents(attendances)).toEqual(["Ahmed", "Clement", "Tayoa", "Nina"]);
+  expect(eligibleStudents(attendances)).toEqual([
+    "Ahmed",
+    "Clement",
+    "Tayoa",
+    "Nina",
+  ]);
 });
-
diff --git a/mandatory/3-journey-planner.js b/mandatory/3-journey-planner.js
@@ -25,21 +25,34 @@
   When you finish the exercise, think about how this solution is different to your last solution.
   What's better about each approach?
 */
+const transport = {
+  Angel: ["tube", "bus"],
+  "London Bridge": ["tube", "river boat"],
+  "Tower Bridge": ["tube", "bus"],
+  Greenwich: ["bus", "river boat"],
+};
 
 function journeyPlanner(locations, transportMode) {
-
+   let arr = [];
+  for (x in locations) {
+    if (locations[x].indexOf(transportMode) >= 0) {
+    arr.push(x);
+    }
+  }
+  return arr;
 }
+console.log(journeyPlanner(transport, "bus"));
 
 /* ======= TESTS - DO NOT MODIFY ===== 
 - To run the tests for this exercise, run `npm test -- --testPathPattern 3-journey-planner.js`
 - To run all exercises/tests in the mandatory folder, run `npm test`
 - (Reminder: You must have run `npm install` one time before this will work!)
 */
 const londonLocations = {
-    "Angel": ["tube", "bus"],
-    "London Bridge": ["tube", "river boat"],
-    "Tower Bridge": ["tube", "bus"],
-    "Greenwich": ["bus", "river boat"],
+  Angel: ["tube", "bus"],
+  "London Bridge": ["tube", "river boat"],
+  "Tower Bridge": ["tube", "bus"],
+  Greenwich: ["bus", "river boat"],
 };
 
 test("journeyPlanner function works - case 1", () => {
@@ -62,5 +75,5 @@ test("journeyPlanner function works - case 3", () => {
     "Angel",
     "London Bridge",
     "Tower Bridge",
-  ])
-});
+  ]);
+});
diff --git a/mandatory/4-water-bottle.js b/mandatory/4-water-bottle.js
@@ -23,18 +23,40 @@ You have to implement the missing features according to the specification.
 let bottle = {
   volume: 0,
   fillUp: function () {
+    this.volume = 100;
+
     // calling this function should completely fill your bottle (volume = 100);
   },
   pour: function () {
+    this.volume += 10 ;
+    if (this.volume > 100){
+      volume = 100;
+    }
     // calling this function should increase your bottle volume by 10 units;
   },
   drink: function () {
+    this.volume -= 10;
+    if(this.volume < 0 ){
+      this.volume = 0;
+    }
+
     // calling this function should decrease your bottle volume by 10 units;
   },
   isFull: function () {
+    if(this.volume === 100){
+      return true;
+
+    }else {
+    return false;
+  } 
     // this function should return true if your bottle is full;
   },
-  isEmpty: function () {
+  isEmpty: function () { 
+    if(this.volume === 0){
+      return true;
+    }else{
+      return false;
+    }
     // this function should return true if your bottle is empty;
   },
 };