Javascript Third week prep-exercises solutions

mstfsrts · mstfsrts · commit 76bdeb8b1973 · 2024-05-04T21:22:59.000+02:00
diff --git a/Week3/prep-exercises/1-hyf-program/1-find-mentors.js b/Week3/prep-exercises/1-hyf-program/1-find-mentors.js
@@ -8,19 +8,38 @@ import { modules, students, mentors, classes } from "./hyf.js";
  *  ['John', 'Mary']
  */
 const possibleMentorsForModule = (moduleName) => {
-  // TODO complete this function
+  const mentorsForModule = mentors.filter(mentor =>
+    mentor.canTeach.includes(moduleName)
+  );
+  return mentorsForModule.map(mentor => mentor.name);
 };
+
+/* 
+*** A different Solution Method ***
+
+const possibleMentorsForModule = (moduleName) => {
+  return mentors.flatMap(mentor =>
+    mentor.canTeach.includes(moduleName) ? mentor.name : []
+  );
+};
+*/
+
 // You can uncomment out this line to try your function
-// console.log(possibleMentorsForModule('using-apis'));
+ console.log(possibleMentorsForModule('using-apis'));
 
 /**
  * Tjebbe wants to make it even easier for himself.
  * Fill in this function that chooses a random mentor to teach the given module.
  *
  * It should return a single name.
  */
+
 const findMentorForModule = (moduleName) => {
-  // TODO complete this function
+  const mentorsForModule = mentors.filter(mentor =>
+    mentor.canTeach.includes(moduleName)
+  );
+    const randomIndex = Math.floor(Math.random() * mentorsForModule.length);
+  return mentorsForModule[randomIndex].name;
 };
 // You can uncomment out this line to try your function
-// console.log(findMentorForModule('javascript'));
+console.log(findMentorForModule('javascript'));
diff --git a/Week3/prep-exercises/1-hyf-program/2-class-list.js b/Week3/prep-exercises/1-hyf-program/2-class-list.js
@@ -11,11 +11,19 @@ import { modules, students, mentors, classes } from "./hyf.js";
  *
  *  [{ name: 'John', role: 'student' }, { name: 'Mary', role: 'mentor' }]
  */
-const getPeopleOfClass = (className) => {
-  // TODO complete this function
+const getPeopleOfClass = className => {
+    const classInfo = classes.find(x => x.name === className);
+    if (!classInfo) return [];
+
+    const studentsOfClass = students.filter(student => student.class === className).map(student => ({ name: student.name, role: "student" }));
+
+    const mentorsOfClass = mentors.filter(mentor => mentor.nowTeaching === classInfo.currentModule).map(mentor => ({ name: mentor.name, role: "mentor" }));
+
+    return [...studentsOfClass, ...mentorsOfClass];
 };
+
 // You can uncomment out this line to try your function
-// console.log(getPeopleOfClass('class34'));
+console.log(getPeopleOfClass("class34"));
 
 /**
  * We would like to have a complete overview of the current active classes.
@@ -30,7 +38,13 @@ const getPeopleOfClass = (className) => {
  *  }
  */
 const getActiveClasses = () => {
-  // TODO complete this function
+    return classes
+        .filter(x => x.active)
+        .reduce((activeClasses, currentClass) => {
+            activeClasses[currentClass.name] = getPeopleOfClass(currentClass.name);
+            return activeClasses;
+        }, {});
 };
+
 // You can uncomment out this line to try your function
-// console.log(getActiveClasses());
+console.log(getActiveClasses());
