v2.3 (new lectures)

Author: jonasschmedtmann

Diff for: 03-Developer-Skills/final/script.js

@@ -159,3 +159,70 @@ const printForecast = function (arr) {
 printForecast(data1);
 */
 
+///////////////////////////////////////
+// Coding Challenge #2 With AI
+
+/*
+Let's say you're building a time tracking application for freelancers. At some point in building this app, you need a function that receives daily work hours for a certain week, and returns:
+1. Total hours worked
+2. Average daily hours
+3. The day with the most hours worked
+4. Number of days worked
+5. Whether the week was full-time (worked 35 hours or more)
+
+TEST DATA: [7.5, 8, 6.5, 0, 8.5, 4, 0]
+*/
+
+/*
+// Written by ChatGPT
+function analyzeWorkWeek(dailyHours) {
+  const daysOfWeek = [
+    'Monday',
+    'Tuesday',
+    'Wednesday',
+    'Thursday',
+    'Friday',
+    'Saturday',
+    'Sunday',
+  ];
+
+  // Validate that the input array has exactly 7 elements
+  if (!Array.isArray(dailyHours) || dailyHours.length !== 7) {
+    throw new Error('Input must be an array of exactly 7 daily work hours.');
+  }
+
+  // Calculate total hours worked
+  const totalHours = dailyHours.reduce((sum, hours) => sum + hours, 0);
+
+  // Calculate average daily hours, rounded to one decimal place
+  const averageHours = Math.round((totalHours / dailyHours.length) * 10) / 10;
+
+  // Find the day with the most hours worked
+  const maxHours = Math.max(...dailyHours);
+  const maxDayIndex = dailyHours.indexOf(maxHours);
+  const maxDay = daysOfWeek[maxDayIndex]; // Convert index to day name
+
+  // Count the number of days worked
+  const daysWorked = dailyHours.filter(hours => hours > 0).length;
+
+  // Check if the week was full-time (35 hours or more)
+  const isFullTime = totalHours >= 35;
+
+  // Return the result object
+  return {
+    totalHours,
+    averageHours,
+    maxDay, // The name of the day with the most hours
+    daysWorked,
+    isFullTime,
+  };
+}
+
+const weeklyHours = [7.5, 8, 6.5, 0, 8.5, 5, 0];
+const analysis = analyzeWorkWeek(weeklyHours);
+console.log(analysis);
+
+const weeklyHours2 = [7.5, 8, 6.5, 0, 8.5];
+const analysis2 = analyzeWorkWeek(weeklyHours2);
+console.log(analysis2);
+*/

Diff for: 08-Behind-the-Scenes/final/script.js

@@ -175,59 +175,49 @@ addArrow(2, 5, 8);
 
 
 ///////////////////////////////////////
-// Objects vs. primitives
-let age = 30;
-let oldAge = age;
-age = 31;
-console.log(age);
-console.log(oldAge);
-
-const me = {
-  name: 'Jonas',
-  age: 30,
+// Object References in Practice (Shallow vs. Deep Copies)
+
+const jessica1 = {
+  firstName: 'Jessica',
+  lastName: 'Williams',
+  age: 27,
 };
-const friend = me;
-friend.age = 27;
-console.log('Friend:', friend);
-console.log('Me', me);
 
+function marryPerson(originalPerson, newLastName) {
+  originalPerson.lastName = newLastName;
+  return originalPerson;
+}
 
-///////////////////////////////////////
-// Primitives vs. Objects in Practice
+const marriedJessica = marryPerson(jessica1, 'Davis');
+
+// const marriedJessica = jessica1;
+// marriedJessica.lastName = 'Davis';
 
-// Primitive types
-let lastName = 'Williams';
-let oldLastName = lastName;
-lastName = 'Davis';
-console.log(lastName, oldLastName);
+console.log('Before:', jessica1);
+console.log('After:', marriedJessica);
 
-// Reference types
 const jessica = {
   firstName: 'Jessica',
   lastName: 'Williams',
   age: 27,
-};
-const marriedJessica = jessica;
-marriedJessica.lastName = 'Davis';
-console.log('Before marriage:', jessica);
-console.log('After marriage: ', marriedJessica);
-// marriedJessica = {};
-
-// Copying objects
-const jessica2 = {
-  firstName: 'Jessica',
-  lastName: 'Williams',
-  age: 27,
-  family: ['Alice', 'Bob'],
+  familiy: ['Alice', 'Bob'],
 };
 
-const jessicaCopy = Object.assign({}, jessica2);
+// Shallow copy
+const jessicaCopy = { ...jessica };
 jessicaCopy.lastName = 'Davis';
 
-jessicaCopy.family.push('Mary');
-jessicaCopy.family.push('John');
+// jessicaCopy.familiy.push('Mary');
+// jessicaCopy.familiy.push('John');
 
-console.log('Before marriage:', jessica2);
-console.log('After marriage: ', jessicaCopy);
-*/
+// console.log('Before:', jessica);
+// console.log('After:', jessicaCopy);
+
+// Deep copy/clone
+const jessicaClone = structuredClone(jessica);
+jessicaClone.familiy.push('Mary');
+jessicaClone.familiy.push('John');
 
+console.log('Original:', jessica);
+console.log('Clone:', jessicaClone);
+*/

Diff for: 09-Data-Structures-Operators/final/script.js

@@ -48,6 +48,7 @@ const restaurant = {
   },
 };
 
+/*
 ///////////////////////////////////////
 // String Methods Practice
 
@@ -73,7 +74,7 @@ for (const flight of flights.split('+')) {
 ///////////////////////////////////////
 // Coding Challenge #4
 
-/* 
+
 Write a program that receives a list of variable names written in underscore_case and convert them to camelCase.
 
 The input will come from a textarea inserted into the DOM (see code below), and conversion will happen when the button is pressed.
@@ -409,6 +410,49 @@ console.log(rest.size);
 console.log(rest.get(arr));
 
 
+///////////////////////////////////////
+// New Operations to Make Sets Useful!
+
+const italianFoods = new Set([
+  'pasta',
+  'gnocchi',
+  'tomatoes',
+  'olive oil',
+  'garlic',
+  'basil',
+]);
+
+const mexicanFoods = new Set([
+  'tortillas',
+  'beans',
+  'rice',
+  'tomatoes',
+  'avocado',
+  'garlic',
+]);
+
+const commonFoods = italianFoods.intersection(mexicanFoods);
+console.log('Intersection:', commonFoods);
+console.log([...commonFoods]);
+
+const italianMexicanFusion = italianFoods.union(mexicanFoods);
+console.log('Union:', italianMexicanFusion);
+
+console.log([...new Set([...italianFoods, ...mexicanFoods])]);
+
+const uniqueItalianFoods = italianFoods.difference(mexicanFoods);
+console.log('Difference italian', uniqueItalianFoods);
+
+const uniqueMexicanFoods = mexicanFoods.difference(italianFoods);
+console.log('Difference mexican', uniqueMexicanFoods);
+
+const uniqueItalianAndMexicanFoods =
+  italianFoods.symmetricDifference(mexicanFoods);
+console.log(uniqueItalianAndMexicanFoods);
+
+console.log(italianFoods.isDisjointFrom(mexicanFoods));
+
+
 ///////////////////////////////////////
 // Sets
 const ordersSet = new Set([
@@ -716,6 +760,7 @@ console.log(guests);
 const guestCorrect = restaurant.numGuests ?? 10;
 console.log(guestCorrect);
 
+
 ///////////////////////////////////////
 // Short Circuiting (&& and ||)
 

Diff for: 09-Data-Structures-Operators/starter/script.js

@@ -4,6 +4,24 @@
 const flights =
   '_Delayed_Departure;fao93766109;txl2133758440;11:25+_Arrival;bru0943384722;fao93766109;11:45+_Delayed_Arrival;hel7439299980;fao93766109;12:05+_Departure;fao93766109;lis2323639855;12:30';
 
+const italianFoods = new Set([
+  'pasta',
+  'gnocchi',
+  'tomatoes',
+  'olive oil',
+  'garlic',
+  'basil',
+]);
+
+const mexicanFoods = new Set([
+  'tortillas',
+  'beans',
+  'rice',
+  'tomatoes',
+  'avocado',
+  'garlic',
+]);
+
 // Data needed for first part of the section
 const restaurant = {
   name: 'Classico Italiano',