JavaScriptIntro

JavaScriptIntro/lab.js

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+// JavaScript Introduction Lab
+// Student Name: Kenneth Edelin
+
+// ==================================================
+// Part 1: Variables
+// ==================================================
+
+// Practice 1: Create Variables
+let userName = "Kenneth Edelin";
+let age = 26;
+let favoriteColor = "Blue";
+let likesCoding = true;
+
+// Print variables
+console.log("Name:", userName);
+console.log("Age:", age);
+console.log("Favorite Color:", favoriteColor);
+console.log("Likes Coding:", likesCoding);
+
+// Check for Understanding
+// What is a variable?
+// A variable is a named container that stores data.
+
+// What is the difference between let and const?
+// let can be changed later, const cannot be reassigned.
+
+// What does console.log() do?
+// console.log() prints information to the console.
+
+// ==================================================
+// Part 2: Conditionals
+// ==================================================
+
+// Task A
+let temperature = 72;
+
+if (temperature < 60) {
+  console.log("It is cold.");
+} else {
+  console.log("It is warm.");
+}
+
+// Task B
+let password = "javascript123";
+
+if (password === "javascript123") {
+  console.log("Access granted");
+} else {
+  console.log("Access denied");
+}
+
+// Task C
+let hour = 15;
+
+if (hour < 12) {
+  console.log("Good morning");
+} else if (hour >= 12 && hour <= 17) {
+  console.log("Good afternoon");
+} else {
+  console.log("Good evening");
+}
+
+// Check for Understanding
+// What is the purpose of an if statement?
+// An if statement helps a program make decisions based on conditions.
+
+// When would you use else if?
+// You use else if when you want to check another condition after the first one is false.
+
+// What does === check for?
+// It checks if two values are exactly equal in both value and type.
+
+// ==================================================
+// Part 3: Functions
+// ==================================================
+
+// Task A
+function sayHello() {
+  console.log("Hello, welcome to JavaScript!");
+}
+
+sayHello();
+
+// Task B
+function favoriteFood(food) {
+  console.log("My favorite food is " + food + ".");
+}
+
+favoriteFood("pizza");
+
+// Task C
+function multiply(num1, num2) {
+  return num1 * num2;
+}
+
+let product = multiply(6, 7);
+console.log("Product:", product);
+
+// Task D
+function isEven(number) {
+  return number % 2 === 0;
+}
+
+console.log("Is 8 even?", isEven(8));
+console.log("Is 5 even?", isEven(5));
+
+// Check for Understanding
+// Why are functions useful?
+// Functions are useful because they let you reuse code instead of repeating it.
+
+// What is a parameter?
+// A parameter is a value a function receives to work with.
+
+// What is the difference between console.log() and return?
+// console.log() prints a value, while return sends a value back from the function.
+
+// ==================================================
+// Part 4: Loops
+// ==================================================
+
+// Task A
+for (let i = 1; i <= 10; i++) {
+  console.log(i);
+}
+
+// Task B
+for (let i = 2; i <= 20; i += 2) {
+  console.log(i);
+}
+
+// Task C
+let count = 5;
+
+while (count >= 1) {
+  console.log(count);
+  count--;
+}
+
+// Task D
+for (let i = 1; i <= 5; i++) {
+  console.log("Practice makes progress");
+}
+
+// Check for Understanding
+// What is a loop used for?
+// A loop is used to repeat code multiple times.
+
+// When might you use a for loop?
+// You use a for loop when you know how many times you want to repeat something.
+
+// What could happen if a loop condition never becomes false?
+// The loop could run forever and create an infinite loop.
+
+// ==================================================
+// Part 5: Combine Everything
+// ==================================================
+
+// Mini Challenge 1: Number Checker
+function numberChecker(number) {
+  if (number > 0) {
+    console.log(number + " is positive.");
+  } else if (number < 0) {
+    console.log(number + " is negative.");
+  } else {
+    console.log(number + " is zero.");
+  }
+}
+
+numberChecker(10);
+numberChecker(-3);
+numberChecker(0);
+
+// Mini Challenge 2: Countdown Function
+function countdown(startNumber) {
+  let current = startNumber;
+
+  while (current >= 1) {
+    console.log(current);
+    current--;
+  }
+}
+
+countdown(5);
+
+// Mini Challenge 3: Student Progress Checker
+let studentName = "Kenneth Edelin";
+let score = 88;
+
+function checkStudentProgress(name, studentScore) {
+  if (studentScore >= 90) {
+    console.log(name + ": Excellent work");
+  } else if (studentScore >= 75) {
+    console.log(name + ": Good job");
+  } else {
+    console.log(name + ": Keep practicing");
+  }
+}
+
+checkStudentProgress(studentName, score);
+
+// Mini Challenge 4: Class Roster
+let student1 = "Kenneth";
+let student2 = "Jordan";
+let student3 = "Taylor";
+let student4 = "Chris";
+let student5 = "Morgan";
+
+let roster = [student1, student2, student3, student4, student5];
+
+for (let i = 0; i < roster.length; i++) {
+  console.log("Student:", roster[i]);
+}
+
+// ==================================================
+// Stretch Challenges
+// ==================================================
+
+// Stretch 1
+function gradeCalculator(score) {
+  if (score >= 90 && score <= 100) {
+    return "A";
+  } else if (score >= 80) {
+    return "B";
+  } else if (score >= 70) {
+    return "C";
+  } else if (score >= 60) {
+    return "D";
+  } else {
+    return "F";
+  }
+}
+
+console.log("Grade:", gradeCalculator(93));
+console.log("Grade:", gradeCalculator(76));
+console.log("Grade:", gradeCalculator(58));
+
+// Stretch 2
+for (let i = 1; i <= 30; i++) {
+  if (i % 3 === 0) {
+    console.log(i);
+  }
+}
+
+// Stretch 3
+function printNameTimes(name, times) {
+  for (let i = 1; i <= times; i++) {
+    console.log(name);
+  }
+}
+
+printNameTimes("Kenneth Edelin", 3);
+
+// Stretch 4
+function oddOrEvenRepeated(number) {
+  let result;
+
+  if (number % 2 === 0) {
+    result = number + " is even.";
+  } else {
+    result = number + " is odd.";
+  }
+
+  for (let i = 1; i <= 10; i++) {
+    console.log(result);
+  }
+}
+
+oddOrEvenRepeated(7);
+
+// ==================================================
+// Reflection Questions
+// ==================================================
+
+// Which topic felt easiest for you?
+// Variables felt easiest because they are simple containers for storing information.
+
+// Which topic felt most challenging?
+// Functions and loops together can be challenging because they require more planning.
+
+// How do variables, conditionals, functions, and loops work together in a program?
+// Variables store data, conditionals make decisions, functions organize reusable code,
+// and loops repeat actions when needed.
+
+// What is one question you still have about JavaScript?
+// How do arrays and objects work in bigger JavaScript programs?