Topic Description Code Review Focus Met Unmet
Control Structures        
Iteration Use loops for game object arrays, animation frames for, forEach, while loops ✅ ☐
Conditionals Implement collision detection, state transitions if/else, nested conditions ✅ ☐
Nested Conditions Complex game logic (e.g., power-up + collision + direction) Multi-level conditionals ☐ ✅
Data Types        
Numbers Position, velocity, score tracking Numeric properties ☐ ✅
Strings Character names, sprite paths, game states String manipulation ✅ ☐
Booleans Flags (isJumping, isPaused, isVulnerable) Boolean logic ✅ ☐
Arrays Game object collections, level data Array operations ✅ ☐
Objects (JSON) Configuration objects, sprite data Object literals ✅ ☐
Operators        
Mathematical Physics calculations (gravity, velocity, collision) +, -, *, / in physics ✅ ☐
String Operations Path concatenation, text display Template literals, concatenation ✅ ☐
Boolean Expressions Compound conditions in game logic &&, \|\|, ! ✅ ☐ 
## Here are some code runners for each lesson:

Code Runner Challenge

Classes and methods

View IPYNB Source 
%%js

// CODE_RUNNER: Classes and methods
class Cat {
    constructor(name) {
        this.name = name;
        this.hunger = 100; // 100 = full, 0 = starving
    }

    eat() {
        this.hunger = Math.min(100, this.hunger + 30);
        console.log(this.name + " eats some food. Hunger: " + this.hunger);
    }

    meow() {
        if (this.hunger < 40) {
            console.log(this.name + " meows loudly... they're hungry!");
        } else {
            console.log(this.name + " meows contentedly.");
        }
    }
}

let myCat = new Cat("Whiskers");
myCat.meow(); // contentedly
myCat.hunger = 20;
myCat.meow(); // loudly/hungry
myCat.eat();  // hunger restored
Lines: 1 Characters: 0
Output
Click "Run" in code control panel to see output ...

Code Runner Challenge

Strings

View IPYNB Source 
%%js

// CODE_RUNNER: Strings

// Create three strings of varying lengths
let string1 = "Hello";
let string2 = "JavaScript";
let string3 = "Programming";

// Find and print the length of each string
console.log("Lengths:");
console.log(`"${string1}" has length: ${string1.length}`);
console.log(`"${string2}" has length: ${string2.length}`);
console.log(`"${string3}" has length: ${string3.length}`);

// Find and print first and last character of each string
console.log("\nFirst and Last Characters:");
console.log(`"${string1}": first='${string1[0]}', last='${string1[string1.length-1]}'`);
console.log(`"${string2}": first='${string2[0]}', last='${string2[string2.length-1]}'`);
console.log(`"${string3}": first='${string3[0]}', last='${string3[string3.length-1]}'`);

// Concatenate all three strings into a sentence
let sentence = string1 + " " + string2 + " " + string3;
console.log("\nConcatenated sentence:");
console.log(sentence);
Lines: 1 Characters: 0
Output
Click "Run" in code control panel to see output ...