CodeYourFuture · alibvr · Dec 9, 2021 · Dec 9, 2021 · Dec 9, 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,
-  }
+  },
 ];
 
 /*
@@ -68,7 +68,12 @@ Exercise 1:
 */
 function logAllWriters() {
   // write your code to log all writers here
-};
+  writers.forEach((writer) =>
+    console.log(
+      `Hi, my name is ${writer.firstName} ${writer.lastName}. I am ${writer.age} years old, and work as a ${writer.occupation}.`
+    )
+  );
+}
 
 /*
 Exercise 2:
@@ -81,6 +86,15 @@ Exercise 2:
 
 function logDeadWritersInTheirForties() {
   // write your code here
+  const person = writers.filter(
+    (element) =>
+      element.age >= 40 && element.age <= 49 && element.alive === false
+  );
+  person.forEach((element) =>
+    console.log(
+      `Writer ${element.firstName} ${element.lastName} died at ${element.age} years old.`
+    )
+  );
 }
 
 /*
@@ -93,6 +107,15 @@ Exercise 3:
 
 function logAliveWritersInTheirForties() {
   // write your code here
+  const person = writers.filter(
+    (element) =>
+      element.age >= 40 && element.age <= 49 && element.alive === true
+  );
+  person.forEach((element) =>
+    console.log(
+      `Hi, my name is ${element.firstName} ${element.lastName}. I am ${element.age} years old.`
+    )
+  );
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== 
@@ -101,29 +124,32 @@ function logAliveWritersInTheirForties() {
 - (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/2-eligible-students.js b/mandatory/2-eligible-students.js
@@ -20,7 +20,8 @@
  */
 
 function eligibleStudents(attendances) {
-
+   const enoughAttendances = attendances.filter(person => person.attendance >= 8);
+   return enoughAttendances.map(person => person.name);
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== 

diff --git a/mandatory/3-journey-planner.js b/mandatory/3-journey-planner.js
@@ -27,7 +27,13 @@
 */
 
 function journeyPlanner(locations, transportMode) {
-
+  const availableLocations = [];
+  for (const key in locations) {
+    if (locations[key].includes(transportMode)) {
+      availableLocations.push(key);
+    }
+  }
+  return availableLocations;
 }
 
 /* ======= TESTS - DO NOT MODIFY ===== 
@@ -36,10 +42,10 @@ function journeyPlanner(locations, transportMode) {
 - (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 +68,5 @@ test("journeyPlanner function works - case 3", () => {
     "Angel",
     "London Bridge",
     "Tower Bridge",
-  ])
-});
+  ]);
+});