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+# JavaScript Introduction Lab
+
+## Overview
+Welcome to your **JavaScript Introduction Lab**. In this lab, you will teach yourself the foundations of JavaScript by reading short explanations, completing guided practice, and building small pieces of code on your own.
+
+This lab is designed to help you build confidence with:
+- variables
+- conditionals
+- functions
+- loops
+
+By the end of this lab, you should be able to read and write simple JavaScript programs using these core concepts.
+
+---
+
+## Learning Objectives
+By completing this lab, you will be able to:
+
+- Declare and use variables in JavaScript
+- Write conditional statements using `if`, `else if`, and `else`
+- Create and call functions
+- Use loops to repeat actions
+- Combine variables, conditionals, functions, and loops to solve simple problems
+
+---
+
+## Recommended Setup
+
+### Option 1: VS Code + Node.js
+1. Open VS Code
+2. Create a folder called `javascript-intro-lab`
+3. Inside the folder, create a file named `lab.js`
+4. Open the terminal in VS Code
+5. Run your code with:
+
+bash:
+node lab.js
+
+
+### Option 2: Browser Console
+
+You may also complete some parts of this lab in the browser console:
+
+* Open Chrome
+* Right-click the page
+* Select **Inspect**
+* Click the **Console** tab
+
+---
+
+## Before You Start
+
+Make sure you understand this important idea:
+
+JavaScript reads your code from **top to bottom**.
+That means the order of your code matters.
+
+---
+
+# Part 1: Variables
+
+## What is a Variable?
+
+A variable is a named container that stores information.
+
+You can think of it like a labeled box:
+
+* the label is the variable name
+* the value is what is stored inside the box
+
+### Example
+
+```javascript
+let name = "Jordan";
+let age = 28;
+let isStudent = true;
+```
+
+In the examples above:
+
+* `name` stores text
+* `age` stores a number
+* `isStudent` stores a true/false value
+
+---
+
+## Key Notes
+
+* `let` is used when a variable value can change
+* `const` is used when a variable value should not change
+
+### Example
+
+```javascript
+let city = "Philadelphia";
+city = "Wilmington";
+
+const school = "Code Differently";
+```
+
+---
+
+## Practice 1: Create Variables
+
+In your `lab.js` file, create variables for the following:
+
+* your name
+* your age
+* your favorite color
+* whether you like coding
+
+Then print them using `console.log()`.
+
+---
+
+## Check for Understanding
+
+Answer these questions in comments in your code:
+
+1. What is a variable?
+2. What is the difference between `let` and `const`?
+3. What does `console.log()` do?
+
+---
+
+# Part 2: Conditionals
+
+## What is a Conditional?
+
+A conditional allows your program to make decisions.
+
+JavaScript uses:
+
+* `if`
+* `else if`
+* `else`
+
+### Example
+
+This means:
+
+* if the condition is true, run the first block
+* otherwise, run the second block
+
+---
+
+## Comparison Operators
+
+You will often use these in conditionals:
+
+* `>` greater than
+* `<` less than
+* `>=` greater than or equal to
+* `<=` less than or equal to
+* `===` equal to
+* `!==` not equal to
+
+### Example
+
+```javascript
+let score = 85;
+
+if (score >= 90) {
+  console.log("A");
+} else if (score >= 80) {
+  console.log("B");
+} else {
+  console.log("Keep practicing.");
+}
+```
+
+---
+
+## Practice 2: Write Conditionals
+
+### Task A
+
+Create a variable called `temperature`.
+
+Write a conditional that prints:
+
+* `"It is cold."` if the temperature is below 60
+* `"It is warm."` if the temperature is 60 or higher
+
+### Task B
+
+Create a variable called `password`.
+
+Write a conditional that prints:
+
+* `"Access granted"` if the password is `"javascript123"`
+* `"Access denied"` otherwise
+
+### Task C
+
+Create a variable called `hour`.
+
+Write a conditional that prints:
+
+* `"Good morning"` if the hour is less than 12
+* `"Good afternoon"` if the hour is between 12 and 17
+* `"Good evening"` otherwise
+
+---
+
+## Check for Understanding
+
+Answer these questions in comments:
+
+1. What is the purpose of an `if` statement?
+2. When would you use `else if`?
+3. What does `===` check for?
+
+---
+
+# Part 3: Functions
+
+## What is a Function?
+
+A function is a reusable block of code that performs a task.
+
+Instead of writing the same code over and over, you can place it inside a function and call it when needed.
+
+### Example
+
+```javascript
+function greet() {
+  console.log("Hello, welcome to JavaScript.");
+}
+
+greet();
+```
+
+---
+
+## Functions with Parameters
+
+A parameter is a value the function receives.
+
+### Example
+
+```javascript
+function greetUser(name) {
+  console.log("Hello, " + name);
+}
+
+greetUser("Taylor");
+greetUser("Chris");
+```
+
+---
+
+## Functions that Return Values
+
+A function can also return a value.
+
+### Example
+
+```javascript
+function addNumbers(num1, num2) {
+  return num1 + num2;
+}
+
+let result = addNumbers(5, 3);
+console.log(result);
+```
+
+---
+
+## Practice 3: Build Functions
+
+### Task A
+
+Create a function called `sayHello` that prints a greeting.
+
+### Task B
+
+Create a function called `favoriteFood` that accepts one parameter and prints:
+
+```javascript
+"My favorite food is ____."
+```
+
+### Task C
+
+Create a function called `multiply` that accepts two numbers and returns the product.
+
+### Task D
+
+Create a function called `isEven` that accepts one number and returns whether the number is even.
+
+---
+
+## Check for Understanding
+
+Answer these questions in comments:
+
+1. Why are functions useful?
+2. What is a parameter?
+3. What is the difference between `console.log()` and `return`?
+
+---
+
+# Part 4: Loops
+
+## What is a Loop?
+
+A loop repeats code multiple times.
+
+Two common loops:
+
+* `for` loop
+* `while` loop
+
+---
+
+## For Loop
+
+A `for` loop is useful when you know how many times you want to repeat something.
+
+### Example
+
+```javascript
+for (let i = 1; i <= 5; i++) {
+  console.log(i);
+}
+```
+
+This prints:
+
+```javascript
+1
+2
+3
+4
+5
+```
+
+---
+
+## While Loop
+
+A `while` loop continues as long as a condition is true.
+
+### Example
+
+```javascript
+let count = 1;
+
+while (count <= 5) {
+  console.log(count);
+  count++;
+}
+```
+
+---
+
+## Practice 4: Use Loops
+
+### Task A
+
+Write a `for` loop that prints numbers 1 through 10.
+
+### Task B
+
+Write a `for` loop that prints only even numbers from 2 to 20.
+
+### Task C
+
+Write a `while` loop that prints numbers 5 down to 1.
+
+### Task D
+
+Write a loop that prints:
+
+```javascript
+"Practice makes progress"
+```
+
+five times.
+
+---
+
+## Check for Understanding
+
+Answer these questions in comments:
+
+1. What is a loop used for?
+2. When might you use a `for` loop?
+3. What could happen if a loop condition never becomes false?
+
+---
+
+# Part 5: Combine Everything
+
+Now it is time to put all four concepts together.
+
+## Mini Challenge 1: Number Checker
+
+Create a function that:
+
+* accepts one number
+* uses a conditional to check whether it is positive, negative, or zero
+* prints the result
+
+---
+
+## Mini Challenge 2: Countdown Function
+
+Create a function that:
+
+* accepts one number
+* uses a loop to count down from that number to 1
+* prints each number
+
+---
+
+## Mini Challenge 3: Student Progress Checker
+
+Create:
+
+* a variable called `studentName`
+* a variable called `score`
+
+Then create a function that checks the score and prints:
+
+* `"Excellent work"` for 90 and above
+* `"Good job"` for 75 to 89
+* `"Keep practicing"` below 75
+
+---
+
+## Mini Challenge 4: Class Roster
+
+Create an array of 5 names if you already know arrays.
+If you do **not** know arrays yet, just create 5 separate variables.
+
+Then:
+
+* write a loop
+* print each student name one at a time
+
+> Bonus: If you have not learned arrays yet, skip this one or ask your instructor for support.
+
+---
+
+# Stretch Challenges
+
+Complete these if you finish early.
+
+### Stretch 1
+
+Write a function called `gradeCalculator` that returns:
+
+* `"A"` for 90–100
+* `"B"` for 80–89
+* `"C"` for 70–79
+* `"D"` for 60–69
+* `"F"` below 60
+
+### Stretch 2
+
+Write a loop that prints all numbers from 1 to 30 that are divisible by 3.
+
+### Stretch 3
+
+Write a function that accepts a name and a number, then prints that name the number of times given.
+
+### Stretch 4
+
+Write a program that checks if a number is odd or even and then prints the result 10 times using a loop.
+
+---
+
+# Reflection Questions
+
+Answer these in comments at the bottom of your file:
+
+1. Which topic felt easiest for you?
+2. Which topic felt most challenging?
+3. How do variables, conditionals, functions, and loops work together in a program?
+4. What is one question you still have about JavaScript?
+
+---
+
+# Submission Requirements
+
+To complete this lab, make sure your `lab.js` file includes:
+
+* variable practice
+* conditional practice
+* function practice
+* loop practice
+* at least 2 mini challenges
+* reflection questions in comments
+
+---
+
+# Example File Structure
+
+```bash
+javascript-intro-lab/
+│
+├── README.md
+└── lab.js
+```
+
+---
+
+# Success Criteria
+
+You are successful in this lab if you can:
+
+* create and use variables
+* make decisions with conditionals
+* write and call functions
+* repeat logic with loops
+* explain what your code is doing
+
+---
+
+# Tips
+
+* Read each section slowly
+* Run your code often
+* Fix one error at a time
+* Use `console.log()` to check your thinking
+* Do not rush — focus on understanding
+
+---
+
+# Final Reminder
+
+This lab is about practice, not perfection.
+
+Every developer starts with the basics.
+Take your time, test your code, and keep going.
+
+Good luck.
+
+```
+
+
diff --git a/Javascript-Intro/lab.js/lab.js b/Javascript-Intro/lab.js/lab.js
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+// =========================
+// PART 1: VARIABLES
+// =========================
+
+let myName = "Jamiir";
+let myAge = 33;
+let favoriteColor = "RED";
+let likesCoding = True;
+
+console.log(myName);
+console.log(myAge);
+console.log(favoriteColor);
+console.log(likesCoding);
+
+/*
+What is a variable?
+A variable is a container that stores data.
+
+Difference between let and const?
+let can change, const cannot.
+
+What does console.log() do?
+It prints output to the console.
+*/
+
+
+// =========================
+// PART 2: CONDITIONALS
+// =========================
+
+// Task A
+let temperature = 70;
+
+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 = 14;
+
+if (hour < 12) {
+  console.log("Good morning");
+} else if (hour >= 12 && hour <= 17) {
+  console.log("Good afternoon");
+} else {
+  console.log("Good evening");
+}
+
+/*
+What is the purpose of an if statement?
+To make decisions in code.
+
+When would you use else if?
+When checking multiple conditions.
+
+What does === check for?
+It checks if values are exactly equal.
+*/
+
+
+// =========================
+// PART 3: FUNCTIONS
+// =========================
+
+// Task A
+function sayHello() {
+  console.log("Hello!");
+}
+sayHello();
+
+// Task B
+function favoriteFood(food) {
+  console.log("My favorite food is " + taco);
+}
+favoriteFood("taco");
+
+// Task C
+function multiply(num1, num2) {
+  return num1 * num2;
+}
+console.log(multiply(4, 5));
+
+// Task D
+function isEven(num) {
+  return num % 2 === 0;
+}
+console.log(isEven(6)); // true
+
+/*
+Why are functions useful?
+They let us reuse code.
+
+What is a parameter?
+A value passed into a function.
+
+Difference between console.log() and return?
+console.log prints, return gives back a value.
+*/
+
+
+// =======================
+// 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 = 0; i < 5; i++) {
+  console.log("Practice makes progress");
+}
+
+/*
+What is a loop used for?
+To repeat code.
+
+When use a for loop?
+When you know how many times to repeat.
+
+What happens if condition never becomes false?
+Infinite loop.
+*/
+
+
+// =========================
+// PART 5: MINI CHALLENGES
+// =========================
+
+// Mini Challenge 1
+function checkNumber(num) {
+  if (num > 0) {
+    console.log("Positive");
+  } else if (num < 0) {
+    console.log("Negative");
+  } else {
+    console.log("Zero");
+  }
+}
+checkNumber(-5);
+
+// Mini Challenge 2
+function countdown(num) {
+  for (let i = num; i >= 1; i--) {
+    console.log(i);
+  }
+}
+countdown(5);
+
+// Mini Challenge 3
+let studentName = "Jamiir";
+let score = 85;
+
+function checkScore(score) {
+  if (score >= 90) {
+    console.log("Excellent work");
+  } else if (score >= 75) {
+    console.log("Good job");
+  } else {
+    console.log("Keep practicing");
+  }
+}
+checkScore(score);
+
+// Mini Challenge 4 (Array version)
+let students = ["John", "Sarah", "Mike", "Emma", "Chris"];
+
+for (let i = 0; i < students.length; i++) {
+  console.log(students[i]);
+}
+
+
+// =========================
+// STRETCH CHALLENGES
+// =========================
+
+// Stretch 1
+function gradeCalculator(score) {
+  if (score >= 90) 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(gradeCalculator(88));
+
+// Stretch 2
+for (let i = 1; i <= 30; i++) {
+  if (i % 3 === 0) {
+    console.log(i);
+  }
+}
+
+// Stretch 3
+function repeatName(name, times) {
+  for (let i = 0; i < times; i++) {
+    console.log(name);
+  }
+}
+repeatName("Jamiir", 3);
+
+// Stretch 4
+function evenOrOdd(num) {
+  if (num % 2 === 0) {
+    console.log("Even");
+  } else {
+    console.log("Odd");
+  }
+}
+
+for (let i = 0; i < 10; i++) {
+  evenOrOdd(7);
+}
+
+
+// =========================
+// REFLECTION QUESTIONS
+// =========================
+
+/*
+Which topic felt easiest?
+Variables were the easiest.
+
+Which topic felt most challenging?
+Loops can be tricky at first.
+
+How do they work together?
+Variables store data, conditionals make decisions,
+functions organize code, loops repeat actions.
+
+What is one question you still have?
+(When should I use return instead of console.log() in a function?)
+*/
+