# WA 3B: 3B-AP-12

## CodeHS Lessons

Compare and contrast fundamental data structures and their uses.

 Standard 3.6 Random Numbers 6.2 If/Else Statements 6.3 Logical Operators 6.4 Comparison Operators 6.6 While Loops 6.7 The Break Statement 6.9 For Loops 9.1 Functions Challenges 10.3 Collisions 10.4 Mouse Click Events 10.5 More Mouse Events 10.6 Key Events 12.1 Breakout 21.4 Iterating Through an Object 19.3 Animation Practice 27.1 Game Design: Helicopter 26.1 Tic Tac Toe 22.4 Grid Example: Get a Row 22.2 Intro to Grids 22.1 Intro to Sets 24.1 Visualizing Music 25.2 Connect Four 25.1 Conway's Game of Life 19.2 Fun Graphics Challenges 19.1 Snake Game 18.1 Prime Numbers 17.1 Functions and Parameters Practice 16.2 Extra Karel Puzzles 16.1 Extra Karel Practice
 Standard 5.2 If Statements 5.2 If Statements 5.3 Comparison Operators 5.3 Comparison Operators 5.4 Logical Operators 5.4 Logical Operators 5.5 Floating Point Numbers and Rounding 5.5 Floating Point Numbers and Rounding 7.1 While Loops 7.1 While Loops 7.2 For Loops 7.2 For Loops 7.3 Break and Continue 7.3 Break and Continue 7.4 Nested Control Structures 7.4 Nested Control Structures 9.1 Functions 9.1 Functions 9.2 Functions and Parameters 9.2 Functions and Parameters 9.4 Functions and Return Values 9.4 Functions and Return Values 9.5 Exceptions 9.5 Exceptions 10.1 Indexing 10.1 Indexing 10.2 Slicing 10.2 Slicing 10.3 Immutability 10.3 Immutability 10.4 Strings and For Loops 10.4 Strings and For Loops 10.5 The in Keyword 10.5 The in Keyword 10.6 String Methods 10.6 String Methods 12.1 Tuples 12.1 Tuples 12.2 Lists 12.2 Lists 12.3 For Loops and Lists 12.3 For Loops and Lists 12.4 List Methods 12.4 List Methods 13.1 2d Lists 13.2 List Comprehensions 13.3 Packing and Unpacking 13.4 Dictionaries 23.5 Class Variables vs. Instance Variables 24.2 De Morgan's Laws 21.1 Project: Who Said It? 24.1 Short Circuit Evaluation 23.9 Modules 21.1 Project: Who Said It? 24.2 De Morgan's Laws 24.1 Short Circuit Evaluation 23.9 Modules 23.8 Namespaces 23.7 Hidden Attributes 23.6 Inheritance 23.1 Classes and Objects 23.4 Operator Overloading 23.3 Built-In Methods 23.2 Methods 23.1 Classes and Objects 23.8 Namespaces 23.7 Hidden Attributes 23.6 Inheritance 23.5 Class Variables vs. Instance Variables 23.4 Operator Overloading 23.3 Built-In Methods 23.2 Methods
 Standard 6.1 Array 7.1 ArrayList 7.4 Developing Algorithms using ArrayLists
 Standard 7.1 Intro to Lists/Arrays 7.2 Indexing Into an Array 7.3 Adding/Removing From an Array 7.4 Array Length and Looping Through Arrays 7.5 Iterating Over an Array 7.6 Finding an Element in a List 7.7 Removing an Element From an Array
 Standard 7.2 Lists 7.3 For Loops and Lists 7.4 List Methods 33.3 Immutability 33.2 Slicing 33.4 Strings and For Loops 33.5 The in Keyword 33.6 String Methods 27.1 Classes and Objects 27.2 Methods 27.3 Built-In Methods 27.4 Operator Overloading 27.5 Class Variables vs. Instance Variables 27.6 Inheritance 27.7 Hidden Attributes 27.8 Namespaces 27.9 Modules 28.1 Short Circuit Evaluation 28.2 De Morgan's Laws 29.1 Project: Who Said It? 27.5 Class Variables vs. Instance Variables 33.2 Slicing 33.3 Immutability 33.4 Strings and For Loops 33.5 The in Keyword 33.6 String Methods 27.1 Classes and Objects 27.2 Methods 27.3 Built-In Methods 27.4 Operator Overloading 33.1 Indexing 27.6 Inheritance 27.7 Hidden Attributes 27.8 Namespaces 27.9 Modules 28.1 Short Circuit Evaluation 28.2 De Morgan's Laws 29.1 Project: Who Said It? 33.1 Indexing
 Standard 7.1 Intro to Lists/Arrays 7.2 Indexing Into an Array 7.3 Adding/Removing From an Array 7.4 Array Length and Looping Through Arrays 7.5 Iterating Over an Array 7.6 Finding an Element in a List 7.7 Removing an Element From an Array
 Standard 9.14 Functions and Parameters 1 9.17 Functions and Return Values 2 9.17 Functions and Return Values 2 9.10 For Loop Practice 9.10 For Loop Practice 9.15 Functions and Parameters 2 9.15 Functions and Parameters 2 9.9 For Loops in JavaScript 9.9 For Loops in JavaScript 9.16 Functions and Return Values 1 9.16 Functions and Return Values 1 9.14 Functions and Parameters 1 9.6 Logical Operators 9.13 Loop and a Half 9.13 Loop and a Half 9.12 While Loops 9.12 While Loops 9.11 Random Numbers 9.11 Random Numbers 9.8 If Statements 9.8 If Statements 9.7 Comparison Operators 9.7 Comparison Operators 9.6 Logical Operators
 Standard 4.5 Arrays and Objects 22.2 Logical Operators 22.10 Loop and a Half 22.9 While Loops 22.8 Random Numbers 22.7 For Loop Practice 22.6 General For Loops 22.5 For Loops in JavaScript 22.4 If Statements 22.3 Comparison Operators 22.2 Logical Operators 22.10 Loop and a Half 22.9 While Loops 22.8 Random Numbers 22.7 For Loop Practice 22.6 General For Loops 22.5 For Loops in JavaScript 22.4 If Statements 22.3 Comparison Operators
 Standard 2.6 Random Numbers 5.2 If/Else Statements 5.3 Logical Operators 5.4 Comparison Operators 5.6 While Loops 5.7 The Break Statement 5.9 For Loops 8.1 Functions Challenges 9.3 Collisions 9.4 Mouse Click Events 9.5 More Mouse Events 9.6 Key Events 11.1 Breakout 12.1 Snake Game 14.4 Iterating Through an Object 15.1 Tic Tac Toe 16.1 Game Design: Helicopter 24.1 Functions and Parameters Practice 25.1 Prime Numbers 23.2 Extra Karel Puzzles 26.1 Fun Graphics Challenges 27.1 Conway's Game of Life 20.1 Connect Four 29.1 Visualizing Music 22.1 Intro to Sets 22.2 Intro to Grids 22.4 Grid Example: Get a Row 26.2 Animation Practice 23.1 Extra Karel Practice
 Standard 3.6 Random Numbers 6.2 If/Else Statements 6.3 Logical Operators 6.4 Comparison Operators 6.6 While Loops 6.7 The Break Statement 6.9 For Loops 9.1 Functions Challenges 10.3 Collisions 10.4 Mouse Click Events 10.5 More Mouse Events 10.6 Key Events 12.1 Breakout 14.4 Iterating Through an Object 15.1 Tic Tac Toe 16.1 Game Design: Helicopter 21.2 Extra Karel Puzzles 22.1 Functions and Parameters Practice 23.1 Prime Numbers 24.1 Snake Game 24.2 Fun Graphics Challenges 27.1 Conway's Game of Life 27.2 Connect Four 26.1 Visualizing Music 20.1 Intro to Sets 20.2 Intro to Grids 20.4 Grid Example: Get a Row 24.3 Animation Practice 21.1 Extra Karel Practice
 Standard 3.6 Random Numbers 6.2 If/Else Statements 6.3 Logical Operators 6.4 Comparison Operators 6.6 While Loops 6.7 The Break Statement 6.9 For Loops 9.1 Functions Challenges 23.1 Conway's Game of Life 21.4 Iterating Through an Object 23.2 Connect Four 18.1 Visualizing Music 22.1 Intro to Sets 22.2 Intro to Grids 22.4 Grid Example: Get a Row 24.1 Tic Tac Toe 25.1 Game Design: Helicopter 17.3 Animation Practice 17.2 Fun Graphics Challenges 17.1 Snake Game 16.1 Prime Numbers 15.1 Functions and Parameters Practice 14.2 Extra Karel Puzzles 14.1 Extra Karel Practice 13.1 Breakout 11.6 Key Events 11.5 More Mouse Events 11.4 Mouse Click Events 11.3 Collisions
 Standard 5.6 Parameters 5.9 Using i in For Loops 7.1 If Statements 7.2 If/Else Statements 7.4 While Loops
 Standard 5.6 Parameters 5.9 Using i in For Loops 7.1 If Statements 7.2 If/Else Statements 7.4 While Loops
 Standard 4.4 If/Else Statements
 Standard 11.1 Extra Karel Practice 12.1 Extra Karel Puzzles 13.13 Parameters 13.14 Using i in For Loops 13.16 If Statements 13.17 If/ Else Statements 13.18 While Loops 11.1 Extra Karel Practice 12.1 Extra Karel Puzzles 13.13 Parameters 13.14 Using i in For Loops 13.16 If Statements 13.17 If/ Else Statements 13.18 While Loops
 Standard 3.13 Parameters 3.13 Parameters 3.14 Using i in For Loops 3.14 Using i in For Loops 3.16 If Statements 3.16 If Statements 3.17 If/ Else Statements 3.17 If/ Else Statements 3.18 While Loops 3.18 While Loops 4.1 Extra Karel Practice 5.1 Extra Karel Puzzles 4.1 Extra Karel Practice 5.1 Extra Karel Puzzles
 Standard 4.1 Extra Karel Practice 5.1 Extra Karel Puzzles 6.13 Parameters 6.14 Using i in For Loops 6.16 If Statements 6.17 If/ Else Statements 6.18 While Loops 4.1 Extra Karel Practice 5.1 Extra Karel Puzzles 6.13 Parameters 6.14 Using i in For Loops 6.16 If Statements 6.17 If/ Else Statements 6.18 While Loops
 Standard 7.8 Comparison Operators 7.8 Comparison Operators 7.9 Logical Operators 7.9 Logical Operators 7.11 For Loops 7.11 For Loops 7.12 Break and Continue 7.12 Break and Continue 7.14 Functions 7.14 Functions 7.15 Functions and Parameters 7.15 Functions and Parameters 7.17 Functions and Return Values 7.17 Functions and Return Values 7.18 Exceptions 7.18 Exceptions
 Standard 6.1 Tuples 6.1 Tuples 6.2 Lists 6.2 Lists 6.3 For Loops and Lists 6.3 For Loops and Lists 6.4 List Methods 6.4 List Methods 6.5 2d Lists 6.5 2d Lists 6.6 Dictionaries 6.6 Dictionaries
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 4.2 If Statements 4.2 If Statements 4.3 Comparison Operators 4.3 Comparison Operators 4.4 Logical Operators 4.4 Logical Operators 4.5 Floating Point Numbers and Rounding 4.5 Floating Point Numbers and Rounding 5.1 While Loops 5.1 While Loops 5.2 For Loops 5.2 For Loops 5.3 Break and Continue 5.3 Break and Continue 5.4 Nested Control Structures 5.4 Nested Control Structures 6.1 Functions 6.1 Functions 6.2 Functions and Parameters 6.2 Functions and Parameters 6.4 Functions and Return Values 6.4 Functions and Return Values 6.5 Exceptions 6.5 Exceptions 8.1 Indexing 8.1 Indexing 8.2 Slicing 8.2 Slicing 8.3 Immutability 8.3 Immutability 8.4 Strings and For Loops 8.4 Strings and For Loops 8.5 The in Keyword 8.5 The in Keyword 8.6 String Methods 8.6 String Methods 9.1 Tuples 9.1 Tuples 9.2 Lists 9.2 Lists 9.3 For Loops and Lists 9.3 For Loops and Lists 9.4 List Methods 9.4 List Methods 10.1 2d Lists 10.1 2d Lists 10.2 List Comprehensions 10.2 List Comprehensions 10.3 Packing and Unpacking 10.3 Packing and Unpacking 10.4 Dictionaries 10.4 Dictionaries 10.5 Equivalence vs. Identity 10.5 Equivalence vs. Identity 17.2 De Morgan's Laws 17.2 De Morgan's Laws 17.1 Short Circuit Evaluation 14.9 Modules 14.8 Namespaces 14.7 Hidden Attributes 14.6 Inheritance 14.5 Class Variables vs. Instance Variables 14.4 Operator Overloading 14.3 Built-In Methods 14.2 Methods 14.1 Classes and Objects 14.1 Classes and Objects 14.2 Methods 14.3 Built-In Methods 14.4 Operator Overloading 14.5 Class Variables vs. Instance Variables 14.6 Inheritance 14.7 Hidden Attributes 14.8 Namespaces 14.9 Modules 17.1 Short Circuit Evaluation
 Standard 6.2 Logical Operators 6.2 Logical Operators 6.3 Comparison Operators 6.3 Comparison Operators 6.4 If Statements 6.4 If Statements 6.5 For Loops in JavaScript 6.5 For Loops in JavaScript 6.6 General For Loops 6.6 General For Loops 6.7 For Loop Practice 6.7 For Loop Practice 6.8 Random Numbers 6.8 Random Numbers 6.9 While Loops 6.9 While Loops 6.10 Loop and a Half 6.10 Loop and a Half 8.1 Functions and Parameters 1 8.1 Functions and Parameters 1 8.2 Functions and Parameters 2 8.2 Functions and Parameters 2 8.3 Functions and Parameters 3 8.3 Functions and Parameters 3 8.4 Functions and Return Values 1 8.4 Functions and Return Values 1 8.5 Functions and Return Values 2 8.5 Functions and Return Values 2 9.1 Functions Challenges 9.1 Functions Challenges 11.3 Random Ghosts 11.3 Random Ghosts 11.4 Bouncing Ball 11.4 Bouncing Ball 11.5 Mouse Events: Mouse Clicked 11.5 Mouse Events: Mouse Clicked 11.6 Mouse Events: Mouse Moved 11.6 Mouse Events: Mouse Moved 11.8 Key Events 11.8 Key Events 13.1 Breakout 13.1 Breakout 18.1 Extra Karel Practice 19.1 Extra Karel Puzzles 21.1 Tic Tac Toe 20.1 Functions and Parameters Practice 20.1 Functions and Parameters Practice 22.1 Game Design: Helicopter 22.1 Game Design: Helicopter 18.1 Extra Karel Practice 19.1 Extra Karel Puzzles 21.1 Tic Tac Toe
 Standard 4.3 Parameters 4.3 Parameters 4.4 Using i in For Loops 4.4 Using i in For Loops 6.1 If Statements 6.1 If Statements 6.2 If/ Else Statements 6.2 If/ Else Statements 6.3 While Loops 6.3 While Loops
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 5.1 What are Data Structures? 5.1 What are Data Structures? 5.2 Introduction to Arrays 5.2 Introduction to Arrays 5.3 Using Arrays 5.3 Using Arrays 5.5 ArrayList Methods 5.5 ArrayList Methods 5.6 Arrays vs ArrayLists 5.6 Arrays vs ArrayLists 5.8 The List Interface 5.8 The List Interface 5.9 2D Arrays (Matrices or Grids) 5.9 2D Arrays (Matrices or Grids) 5.11 HashMaps 5.11 HashMaps 5.12 Binary 5.12 Binary
 Standard 5.2 Logical Operators 5.2 Logical Operators 5.3 Comparison Operators 5.3 Comparison Operators 5.4 If Statements 5.4 If Statements 5.5 For Loops in JavaScript 5.5 For Loops in JavaScript 5.6 General For Loops 5.6 General For Loops 5.7 For Loop Practice 5.7 For Loop Practice 5.8 Random Numbers 5.8 Random Numbers 5.9 While Loops 5.9 While Loops 5.10 Loop and a Half 5.10 Loop and a Half 7.1 Functions and Parameters 1 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 7.3 Functions and Parameters 3 7.4 Functions and Return Values 1 7.4 Functions and Return Values 1 7.5 Functions and Return Values 2 7.5 Functions and Return Values 2 8.1 Functions Challenges 8.1 Functions Challenges 9.3 Random Ghosts 9.3 Random Ghosts 9.4 Bouncing Ball 9.4 Bouncing Ball 9.5 Mouse Events: Mouse Clicked 9.5 Mouse Events: Mouse Clicked 9.6 Mouse Events: Mouse Moved 9.6 Mouse Events: Mouse Moved 9.8 Key Events 9.8 Key Events 11.1 Breakout 11.1 Breakout 25.11 When Do I Use an Object? 25.6 Finding an Element in a List 25.7 Removing an Element From an Array 25.10 Iterating Over an Object 26.1 Tic Tac Toe 25.15 Grid Example: Get a Row 18.1 Prime Numbers 19.2 Fun Graphics Challenges 19.1 Fun Snake 20.2 Connect Four 20.1 Conway's Game of Life 21.1 Evolution Simulation 24.1 Visualizing Music 17.1 Functions and Parameters Practice 16.1 Extra Karel Puzzles 15.1 Extra Karel Practice 27.1 Game Design: Helicopter 25.16 Data Structures Challenges 25.15 Grid Example: Get a Row 25.13 Intro to Grids 25.12 Intro to Sets 19.2 Fun Graphics Challenges 25.16 Data Structures Challenges 27.1 Game Design: Helicopter 15.1 Extra Karel Practice 16.1 Extra Karel Puzzles 26.1 Tic Tac Toe 24.1 Visualizing Music 21.1 Evolution Simulation 20.1 Conway's Game of Life 20.2 Connect Four 19.1 Fun Snake 25.5 Iterating Over an Array 18.1 Prime Numbers 17.1 Functions and Parameters Practice 25.13 Intro to Grids 25.12 Intro to Sets 25.11 When Do I Use an Object? 25.10 Iterating Over an Object 25.7 Removing an Element From an Array 25.6 Finding an Element in a List 25.5 Iterating Over an Array
 Standard 5.2 Logical Operators 5.2 Logical Operators 5.3 Comparison Operators 5.3 Comparison Operators 5.4 If Statements 5.4 If Statements 5.5 For Loops in JavaScript 5.5 For Loops in JavaScript 5.6 General For Loops 5.6 General For Loops 5.7 For Loop Practice 5.7 For Loop Practice 5.8 Random Numbers 5.8 Random Numbers 5.9 While Loops 5.9 While Loops 5.10 Loop and a Half 5.10 Loop and a Half 7.1 Functions and Parameters 1 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 7.3 Functions and Parameters 3 7.4 Functions and Return Values 1 7.4 Functions and Return Values 1 7.5 Functions and Return Values 2 7.5 Functions and Return Values 2 8.1 Functions Challenges 8.1 Functions Challenges 9.3 Random Ghosts 9.3 Random Ghosts 9.4 Bouncing Ball 9.4 Bouncing Ball 9.5 Mouse Events: Mouse Clicked 9.5 Mouse Events: Mouse Clicked 9.6 Mouse Events: Mouse Moved 9.6 Mouse Events: Mouse Moved 9.8 Key Events 9.8 Key Events 11.1 Breakout 11.1 Breakout 12.5 Iterating Over an Array 12.5 Iterating Over an Array 12.6 Finding an Element in a List 12.6 Finding an Element in a List 12.7 Removing an Element From an Array 12.7 Removing an Element From an Array 12.10 Iterating Over an Object 12.10 Iterating Over an Object 12.11 When Do I Use an Object? 12.11 When Do I Use an Object? 12.12 Intro to Sets 12.12 Intro to Sets 12.13 Intro to Grids 12.13 Intro to Grids 12.15 Grid Example: Get a Row 12.15 Grid Example: Get a Row 12.16 Data Structures Challenges 12.16 Data Structures Challenges 13.1 Tic Tac Toe 13.1 Tic Tac Toe 14.1 Game Design: Helicopter 14.1 Game Design: Helicopter 20.1 Functions and Parameters Practice 20.1 Functions and Parameters Practice 21.1 Prime Numbers 22.2 Fun Graphics Challenges 22.1 Fun Snake 23.2 Connect Four 23.1 Conway's Game of Life 24.1 Evolution Simulation 28.1 Visualizing Music 19.1 Extra Karel Puzzles 18.1 Extra Karel Practice 18.1 Extra Karel Practice 19.1 Extra Karel Puzzles 28.1 Visualizing Music 24.1 Evolution Simulation 23.1 Conway's Game of Life 23.2 Connect Four 22.1 Fun Snake 22.2 Fun Graphics Challenges 21.1 Prime Numbers
 Standard 5.2 Logical Operators 5.2 Logical Operators 5.3 Comparison Operators 5.3 Comparison Operators 5.4 If Statements 5.4 If Statements 5.5 For Loops in JavaScript 5.5 For Loops in JavaScript 5.6 General For Loops 5.6 General For Loops 5.7 For Loop Practice 5.7 For Loop Practice 5.8 Random Numbers 5.8 Random Numbers 5.9 While Loops 5.9 While Loops 5.10 Loop and a Half 5.10 Loop and a Half 7.1 Functions and Parameters 1 7.1 Functions and Parameters 1 7.2 Functions and Parameters 2 7.2 Functions and Parameters 2 7.3 Functions and Parameters 3 7.3 Functions and Parameters 3 7.4 Functions and Return Values 1 7.4 Functions and Return Values 1 7.5 Functions and Return Values 2 7.5 Functions and Return Values 2 9.1 Functions Challenges 9.1 Functions Challenges 9.1 Functions Challenges 9.1 Functions Challenges 23.1 Game Design: Helicopter 21.6 Finding an Element in a List 21.7 Removing an Element From an Array 21.10 Iterating Over an Object 21.11 When Do I Use an Object? 21.12 Intro to Sets 21.13 Intro to Grids 21.15 Grid Example: Get a Row 21.16 Data Structures Challenges 12.1 Functions and Parameters Practice 10.1 Extra Karel Practice 11.1 Extra Karel Puzzles 22.1 Tic Tac Toe 20.1 Visualizing Music 16.1 Evolution Simulation 15.1 Conway's Game of Life 15.2 Connect Four 14.1 Fun Snake 14.2 Fun Graphics Challenges 13.1 Prime Numbers 22.1 Tic Tac Toe 23.1 Game Design: Helicopter 20.1 Visualizing Music 16.1 Evolution Simulation 15.1 Conway's Game of Life 15.2 Connect Four 14.1 Fun Snake 14.2 Fun Graphics Challenges 13.1 Prime Numbers 12.1 Functions and Parameters Practice 11.1 Extra Karel Puzzles 10.1 Extra Karel Practice 21.5 Iterating Over an Array 21.16 Data Structures Challenges 21.15 Grid Example: Get a Row 21.13 Intro to Grids 21.12 Intro to Sets 21.11 When Do I Use an Object? 21.10 Iterating Over an Object 21.7 Removing an Element From an Array 21.6 Finding an Element in a List 21.5 Iterating Over an Array
 Standard 4.3 Parameters 4.3 Parameters 4.4 Using i in For Loops 4.4 Using i in For Loops 5.1 If Statements 5.1 If Statements 5.2 If/ Else Statements 5.2 If/ Else Statements 5.3 While Loops 5.3 While Loops
 Standard 2.13 Parameters 2.13 Parameters 2.14 Using i in For Loops 2.14 Using i in For Loops 2.16 If Statements 2.16 If Statements 2.17 If/ Else Statements 2.17 If/ Else Statements 2.18 While Loops 2.18 While Loops 4.2 If Statements 4.2 If Statements 4.3 Comparison Operators 4.3 Comparison Operators 4.4 Logical Operators 4.4 Logical Operators 4.5 Floating Point Numbers and Rounding 4.5 Floating Point Numbers and Rounding 5.1 While Loops 5.1 While Loops 5.2 For Loops 5.2 For Loops 5.3 Break and Continue 5.3 Break and Continue 5.4 Nested Control Structures 5.4 Nested Control Structures 6.1 Functions 6.1 Functions 6.2 Functions and Parameters 6.2 Functions and Parameters 6.4 Functions and Return Values 6.4 Functions and Return Values 6.5 Exceptions 6.5 Exceptions 7.1 Indexing 7.1 Indexing 7.2 Slicing 7.2 Slicing 7.3 Immutability 7.3 Immutability 7.4 Strings and For Loops 7.4 Strings and For Loops 7.5 The in Keyword 7.5 The in Keyword 7.6 String Methods 7.6 String Methods 8.1 Tuples 8.1 Tuples 8.2 Lists 8.2 Lists 8.3 For Loops and Lists 8.3 For Loops and Lists 8.4 List Methods 8.4 List Methods 9.1 2d Lists 9.1 2d Lists 9.2 List Comprehensions 9.2 List Comprehensions 9.3 Packing and Unpacking 9.3 Packing and Unpacking 9.4 Dictionaries 9.4 Dictionaries 9.5 Equivalence vs. Identity 9.5 Equivalence vs. Identity 16.1 Project: Who Said It? 16.1 Project: Who Said It? 15.2 De Morgan's Laws 15.1 Short Circuit Evaluation 12.9 Modules 12.8 Namespaces 12.7 Hidden Attributes 12.6 Inheritance 12.5 Class Variables vs. Instance Variables 12.4 Operator Overloading 12.3 Built-In Methods 12.2 Methods 12.1 Classes and Objects 12.1 Classes and Objects 12.2 Methods 12.3 Built-In Methods 12.4 Operator Overloading 12.5 Class Variables vs. Instance Variables 12.6 Inheritance 12.7 Hidden Attributes 12.8 Namespaces 12.9 Modules 15.1 Short Circuit Evaluation 15.2 De Morgan's Laws
 Standard 14.6 Logical Operators 14.7 Comparison Operators 14.8 If Statements 14.9 For Loops in JavaScript 14.10 Functions and Parameters 1 14.11 Functions and Parameters 2 14.12 Functions and Return Values 1
 Standard 9.1 What are Data Structures? 9.2 Introduction to Arrays 9.3 Using Arrays 9.5 ArrayList Methods 9.6 Arrays vs ArrayLists 9.8 The List Interface 9.9 2D Arrays 9.11 HashMaps 9.12 Binary
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.8 Random Numbers 7.8 Random Numbers 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 16.3 Removing an Element From an Array 15.3 Key Events 16.2 Finding an Element in a List 14.1 Functions and Parameters Practice 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 12.1 Extra Karel Practice 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 14.1 Functions and Parameters Practice 13.1 Extra Karel Puzzles
 Standard 8.2 Logical Operators 8.2 Logical Operators 8.3 Comparison Operators 8.3 Comparison Operators 8.4 If Statements 8.4 If Statements 8.5 For Loops in JavaScript 8.5 For Loops in JavaScript 8.6 General For Loops 8.6 General For Loops 8.7 For Loop Practice 8.7 For Loop Practice 8.8 Random Numbers 8.8 Random Numbers 8.9 While Loops 8.9 While Loops 8.10 Loop and a Half 8.10 Loop and a Half 10.1 Functions and Parameters 1 10.1 Functions and Parameters 1 10.2 Functions and Parameters 2 10.2 Functions and Parameters 2 10.3 Functions and Parameters 3 10.3 Functions and Parameters 3 10.4 Functions and Return Values 1 10.4 Functions and Return Values 1 10.5 Functions and Return Values 2 10.5 Functions and Return Values 2 10.9 Random Ghosts 10.9 Random Ghosts 10.10 Bouncing Ball 10.10 Bouncing Ball 10.11 Mouse Events: Mouse Clicked 10.11 Mouse Events: Mouse Clicked 10.15 Iterating Over an Array 10.15 Iterating Over an Array 13.3 Removing an Element From an Array 18.3 Key Events 13.2 Finding an Element in a List 17.1 Functions and Parameters Practice 14.3 Iterating Over an Object 14.4 When Do I Use an Object? 14.5 Intro to Sets 14.6 Intro to Grids 14.8 Grid Example: Get a Row 14.9 Data Structures Challenges 15.1 Extra Karel Practice 16.1 Extra Karel Puzzles 15.1 Extra Karel Practice 18.1 Mouse Events: Mouse Moved 18.1 Mouse Events: Mouse Moved 18.3 Key Events 13.2 Finding an Element in a List 13.3 Removing an Element From an Array 14.3 Iterating Over an Object 14.4 When Do I Use an Object? 14.5 Intro to Sets 14.6 Intro to Grids 14.8 Grid Example: Get a Row 14.9 Data Structures Challenges 17.1 Functions and Parameters Practice 16.1 Extra Karel Puzzles
 Standard 2.14 Parameters 2.14 Parameters 2.16 Using i in For Loops 2.16 Using i in For Loops 2.18 If Statements 2.18 If Statements 2.19 If/ Else Statements 2.19 If/ Else Statements 2.20 While Loops 2.20 While Loops 6.2 If Statements 6.2 If Statements 6.3 Comparison Operators 6.3 Comparison Operators 6.4 Logical Operators 6.4 Logical Operators 6.5 Floating Point Numbers and Rounding 6.5 Floating Point Numbers and Rounding 7.1 While Loops 7.1 While Loops 7.2 For Loops 7.2 For Loops 7.3 Break and Continue 7.3 Break and Continue 7.4 Nested Control Structures 7.4 Nested Control Structures 8.1 Functions 8.1 Functions 8.2 Functions and Parameters 8.2 Functions and Parameters 8.4 Functions and Return Values 8.4 Functions and Return Values 8.5 Exceptions 8.5 Exceptions 9.1 Indexing 9.1 Indexing 9.2 Slicing 9.2 Slicing 9.3 Immutability 9.3 Immutability 9.4 Strings and For Loops 9.4 Strings and For Loops 9.5 The in Keyword 9.5 The in Keyword 9.6 String Methods 9.6 String Methods 10.1 Tuples 10.1 Tuples 10.2 Lists 10.2 Lists 10.3 For Loops and Lists 10.3 For Loops and Lists 10.4 List Methods 10.4 List Methods 11.1 2d Lists 11.1 2d Lists 11.2 List Comprehensions 11.2 List Comprehensions 11.3 Packing and Unpacking 11.3 Packing and Unpacking 11.4 Dictionaries 11.4 Dictionaries 11.5 Equivalence vs. Identity 11.5 Equivalence vs. Identity 18.1 Project: Who Said It? 17.2 De Morgan's Laws 17.1 Short Circuit Evaluation 17.1 Short Circuit Evaluation 17.2 De Morgan's Laws 18.1 Project: Who Said It?
 Standard 8.2 Logical Operators 8.2 Logical Operators 8.3 Comparison Operators 8.3 Comparison Operators 8.4 If Statements 8.4 If Statements 8.5 For Loops in JavaScript 8.5 For Loops in JavaScript 8.6 General For Loops 8.6 General For Loops 8.7 For Loop Practice 8.7 For Loop Practice 8.8 Random Numbers 8.8 Random Numbers 8.9 While Loops 8.9 While Loops 8.10 Loop and a Half 8.10 Loop and a Half 10.1 Functions and Parameters 1 10.1 Functions and Parameters 1 10.2 Functions and Parameters 2 10.2 Functions and Parameters 2 10.3 Functions and Parameters 3 10.3 Functions and Parameters 3 10.4 Functions and Return Values 1 10.4 Functions and Return Values 1 10.5 Functions and Return Values 2 10.5 Functions and Return Values 2 10.8 Random Ghosts 10.8 Random Ghosts 10.9 Bouncing Ball 10.9 Bouncing Ball 10.10 Mouse Events: Mouse Clicked 10.10 Mouse Events: Mouse Clicked 10.14 Iterating Over an Array 10.14 Iterating Over an Array 17.3 Removing an Element From an Array 16.3 Key Events 17.2 Finding an Element in a List 15.1 Functions and Parameters Practice 18.3 Iterating Over an Object 18.4 When Do I Use an Object? 18.5 Intro to Sets 18.6 Intro to Grids 18.8 Grid Example: Get a Row 18.9 Data Structures Challenges 13.1 Extra Karel Practice 14.1 Extra Karel Puzzles 13.1 Extra Karel Practice 16.1 Mouse Events: Mouse Moved 16.1 Mouse Events: Mouse Moved 16.3 Key Events 17.2 Finding an Element in a List 17.3 Removing an Element From an Array 18.3 Iterating Over an Object 18.4 When Do I Use an Object? 18.5 Intro to Sets 18.6 Intro to Grids 18.8 Grid Example: Get a Row 18.9 Data Structures Challenges 15.1 Functions and Parameters Practice 14.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 9.2 Logical Operators 9.2 Logical Operators 9.3 Comparison Operators 9.3 Comparison Operators 9.4 If Statements 9.4 If Statements 9.5 For Loops in JavaScript 9.5 For Loops in JavaScript 9.6 General For Loops 9.6 General For Loops 9.7 For Loop Practice 9.7 For Loop Practice 9.8 Random Numbers 9.8 Random Numbers 9.9 While Loops 9.9 While Loops 9.10 Loop and a Half 9.10 Loop and a Half 11.1 Functions and Parameters 1 11.1 Functions and Parameters 1 11.2 Functions and Parameters 2 11.2 Functions and Parameters 2 11.3 Functions and Parameters 3 11.3 Functions and Parameters 3 11.4 Functions and Return Values 1 11.4 Functions and Return Values 1 11.5 Functions and Return Values 2 11.5 Functions and Return Values 2 11.8 Random Ghosts 11.8 Random Ghosts 11.9 Bouncing Ball 11.9 Bouncing Ball 11.10 Mouse Events: Mouse Clicked 11.10 Mouse Events: Mouse Clicked 11.14 Iterating Over an Array 11.14 Iterating Over an Array 18.3 Removing an Element From an Array 17.3 Key Events 18.2 Finding an Element in a List 16.1 Functions and Parameters Practice 19.3 Iterating Over an Object 19.4 When Do I Use an Object? 19.5 Intro to Sets 19.6 Intro to Grids 19.8 Grid Example: Get a Row 19.9 Data Structures Challenges 14.1 Extra Karel Practice 15.1 Extra Karel Puzzles 14.1 Extra Karel Practice 17.1 Mouse Events: Mouse Moved 17.1 Mouse Events: Mouse Moved 17.3 Key Events 18.2 Finding an Element in a List 18.3 Removing an Element From an Array 19.3 Iterating Over an Object 19.4 When Do I Use an Object? 19.5 Intro to Sets 19.6 Intro to Grids 19.8 Grid Example: Get a Row 19.9 Data Structures Challenges 16.1 Functions and Parameters Practice 15.1 Extra Karel Puzzles
 Standard 3.13 Parameters 3.13 Parameters 3.14 Using i in For Loops 3.14 Using i in For Loops 3.16 If Statements 3.16 If Statements 3.17 If/ Else Statements 3.17 If/ Else Statements 3.18 While Loops 3.18 While Loops
 Standard 15.2 Logical Operators 14.1 Extra Karel Puzzles 13.1 Extra Karel Practice 15.10 Loop and a Half 15.9 While Loops 15.8 Random Numbers 15.7 For Loop Practice 15.6 General For Loops 15.5 For Loops in JavaScript 15.4 If Statements 15.3 Comparison Operators 15.2 Logical Operators 14.1 Extra Karel Puzzles 13.1 Extra Karel Practice 15.10 Loop and a Half 15.9 While Loops 15.8 Random Numbers 15.7 For Loop Practice 15.6 General For Loops 15.5 For Loops in JavaScript 15.4 If Statements 15.3 Comparison Operators
 Standard 7.1 Intro to Lists/Arrays 7.2 Indexing Into an Array 7.3 Adding/Removing From an Array 7.4 Array Length and Looping Through Arrays 7.5 Iterating Over an Array 7.6 Finding an Element in a List 7.7 Removing an Element From an Array
 Standard 17.10 Mouse Events: Mouse Clicked 14.3 Comparison Operators 14.4 If Statements 14.5 For Loops in JavaScript 14.6 General For Loops 14.7 For Loop Practice 14.8 Random Numbers 14.9 While Loops 14.10 Loop and a Half 17.1 Functions and Parameters 1 17.2 Functions and Parameters 2 17.3 Functions and Parameters 3 17.4 Functions and Return Values 1 17.5 Functions and Return Values 2 17.8 Random Ghosts 17.9 Bouncing Ball 14.2 Logical Operators 16.1 Mouse Events: Mouse Moved 16.3 Key Events 17.14 Iterating Over an Array 19.2 Finding an Element in a List 19.3 Removing an Element From an Array 20.3 Iterating Over an Object 20.4 When Do I Use an Object? 20.5 Intro to Sets 20.6 Intro to Grids 20.8 Grid Example: Get a Row 20.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 18.1 Functions and Parameters Practice 17.10 Mouse Events: Mouse Clicked 14.3 Comparison Operators 14.4 If Statements 14.5 For Loops in JavaScript 14.6 General For Loops 14.7 For Loop Practice 14.8 Random Numbers 14.9 While Loops 14.10 Loop and a Half 17.1 Functions and Parameters 1 17.2 Functions and Parameters 2 17.3 Functions and Parameters 3 17.4 Functions and Return Values 1 17.5 Functions and Return Values 2 17.8 Random Ghosts 17.9 Bouncing Ball 14.2 Logical Operators 16.1 Mouse Events: Mouse Moved 16.3 Key Events 17.14 Iterating Over an Array 19.2 Finding an Element in a List 19.3 Removing an Element From an Array 20.3 Iterating Over an Object 20.4 When Do I Use an Object? 20.5 Intro to Sets 20.6 Intro to Grids 20.8 Grid Example: Get a Row 20.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 18.1 Functions and Parameters Practice
 Standard 4.2 If Statements 4.2 If Statements 4.3 Comparison Operators 4.3 Comparison Operators 4.4 Logical Operators 4.4 Logical Operators 4.5 Floating Point Numbers and Rounding 4.5 Floating Point Numbers and Rounding 5.1 While Loops 5.1 While Loops 5.2 For Loops 5.2 For Loops 5.3 Break and Continue 5.3 Break and Continue 5.4 Nested Control Structures 5.4 Nested Control Structures 6.1 Functions 6.1 Functions 6.2 Functions and Parameters 6.2 Functions and Parameters 6.4 Functions and Return Values 6.4 Functions and Return Values 6.5 Exceptions 6.5 Exceptions 8.1 Indexing 8.1 Indexing 8.2 Slicing 8.2 Slicing 8.3 Immutability 8.3 Immutability 8.4 Strings and For Loops 8.4 Strings and For Loops 8.5 The in Keyword 8.5 The in Keyword 8.6 String Methods 8.6 String Methods 9.1 Tuples 9.1 Tuples 9.2 Lists 9.2 Lists 9.3 For Loops and Lists 9.3 For Loops and Lists 9.4 List Methods 9.4 List Methods 9.5 2d Lists 9.5 2d Lists 15.4 Operator Overloading 12.1 List Comprehensions 12.2 Packing and Unpacking 12.3 Dictionaries 12.4 Equivalence vs. Identity 15.1 Classes and Objects 15.2 Methods 15.3 Built-In Methods 18.13 Parameters 15.5 Class Variables vs. Instance Variables 15.6 Inheritance 15.7 Hidden Attributes 15.8 Namespaces 15.9 Modules 17.1 Project: Who Said It? 15.4 Operator Overloading 18.14 Using i in For Loops 18.16 If Statements 18.17 If/ Else Statements 18.18 While Loops 12.1 List Comprehensions 12.2 Packing and Unpacking 12.3 Dictionaries 12.4 Equivalence vs. Identity 15.1 Classes and Objects 15.2 Methods 15.3 Built-In Methods 18.18 While Loops 15.5 Class Variables vs. Instance Variables 15.6 Inheritance 15.7 Hidden Attributes 15.8 Namespaces 15.9 Modules 17.1 Project: Who Said It? 18.13 Parameters 18.14 Using i in For Loops 18.16 If Statements 18.17 If/ Else Statements
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 7.1 Extra Karel Puzzles 7.1 Extra Karel Puzzles
 Standard 2.6 Random Numbers 4.2 If/Else Statements 4.3 Logical Operators 4.4 Comparison Operators 4.6 While Loops 4.7 The Break Statement 4.9 For Loops 6.3 Collisions 6.4 Mouse Click Events 6.5 More Mouse Events 6.6 Key Events 21.3 Animation Practice 32.1 Game Design: Helicopter 31.1 Tic Tac Toe 29.16 Data Structures Quiz 29.15 Grid Example: Get a Row 29.13 Intro to Grids 29.12 Intro to Sets 29.11 When Do I Use an Object? 29.10 Iterating Over an Object 29.7 Removing an Element From an Array 29.6 Finding an Element in a List 29.5 Iterating Over an Array 28.1 Visualizing Music 30.2 Connect Four 30.1 Conway's Game of Life 21.2 Fun Graphics Challenges 21.1 Snake Game 20.1 Prime Numbers 24.1 Functions and Parameters Practice 19.2 Extra Karel Puzzles 19.1 Extra Karel Practice 27.1 Breakout 25.1 Functions Challenges
 Standard 10.2 Logical Operators 10.2 Logical Operators 10.3 Comparison Operators 10.3 Comparison Operators 10.4 If Statements 10.4 If Statements 10.5 For Loops in JavaScript 10.5 For Loops in JavaScript 10.6 General For Loops 10.6 General For Loops 10.7 For Loop Practice 10.7 For Loop Practice 10.8 Random Numbers 10.8 Random Numbers 10.9 While Loops 10.9 While Loops 10.10 Loop and a Half 10.10 Loop and a Half 12.1 Functions and Parameters 1 12.1 Functions and Parameters 1 12.2 Functions and Parameters 2 12.2 Functions and Parameters 2 12.3 Functions and Parameters 3 12.3 Functions and Parameters 3 12.4 Functions and Return Values 1 12.4 Functions and Return Values 1 12.5 Functions and Return Values 2 12.5 Functions and Return Values 2 13.1 Functions Challenges 13.1 Functions Challenges 33.15 Grid Example: Get a Row 21.4 Bouncing Ball 21.5 Mouse Events: Mouse Clicked 21.6 Mouse Events: Mouse Moved 21.8 Key Events 23.1 Breakout 33.5 Iterating Over an Array 33.6 Finding an Element in a List 33.7 Removing an Element From an Array 33.10 Iterating Over an Object 33.11 When Do I Use an Object? 33.12 Intro to Sets 33.13 Intro to Grids 25.1 Functions and Parameters Practice 33.16 Data Structures Challenges 35.1 Game Design: Helicopter 20.1 Extra Karel Practice 24.1 Extra Karel Puzzles 34.1 Tic Tac Toe 32.1 Visualizing Music 29.1 Evolution Simulation 28.1 Conway's Game of Life 28.2 Connect Four 27.1 Fun Snake 27.2 Fun Graphics Challenges 26.1 Prime Numbers 33.15 Grid Example: Get a Row 33.13 Intro to Grids 33.16 Data Structures Challenges 35.1 Game Design: Helicopter 20.1 Extra Karel Practice 24.1 Extra Karel Puzzles 34.1 Tic Tac Toe 32.1 Visualizing Music 29.1 Evolution Simulation 28.1 Conway's Game of Life 28.2 Connect Four 27.1 Fun Snake 27.2 Fun Graphics Challenges 26.1 Prime Numbers 25.1 Functions and Parameters Practice 21.3 Random Ghosts 33.12 Intro to Sets 33.11 When Do I Use an Object? 33.10 Iterating Over an Object 33.7 Removing an Element From an Array 33.6 Finding an Element in a List 33.5 Iterating Over an Array 23.1 Breakout 21.8 Key Events 21.6 Mouse Events: Mouse Moved 21.5 Mouse Events: Mouse Clicked 21.4 Bouncing Ball 21.3 Random Ghosts
 Standard 6.2 Logical Operators 6.2 Logical Operators 6.3 Comparison Operators 6.3 Comparison Operators 6.4 If Statements 6.4 If Statements 6.5 For Loops in JavaScript 6.5 For Loops in JavaScript 6.6 General For Loops 6.6 General For Loops 6.7 For Loop Practice 6.7 For Loop Practice 6.8 Random Numbers 6.8 Random Numbers 6.9 While Loops 6.9 While Loops 6.10 Loop and a Half 6.10 Loop and a Half 8.1 Functions and Parameters 1 8.1 Functions and Parameters 1 8.2 Functions and Parameters 2 8.2 Functions and Parameters 2 8.3 Functions and Parameters 3 8.3 Functions and Parameters 3 8.4 Functions and Return Values 1 8.4 Functions and Return Values 1 8.5 Functions and Return Values 2 8.5 Functions and Return Values 2 9.1 Functions Challenges 9.1 Functions Challenges 10.3 Random Ghosts 10.3 Random Ghosts 10.4 Bouncing Ball 10.4 Bouncing Ball 10.5 Mouse Events: Mouse Clicked 10.5 Mouse Events: Mouse Clicked 10.6 Mouse Events: Mouse Moved 10.6 Mouse Events: Mouse Moved 10.8 Key Events 10.8 Key Events 12.1 Breakout 12.1 Breakout 26.11 When Do I Use an Object? 26.6 Finding an Element in a List 26.7 Removing an Element From an Array 26.10 Iterating Over an Object 27.1 Tic Tac Toe 26.15 Grid Example: Get a Row 19.1 Prime Numbers 20.2 Fun Graphics Challenges 20.1 Fun Snake 21.2 Connect Four 21.1 Conway's Game of Life 22.1 Evolution Simulation 25.1 Visualizing Music 18.1 Functions and Parameters Practice 17.1 Extra Karel Puzzles 16.1 Extra Karel Practice 28.1 Game Design: Helicopter 26.16 Data Structures Challenges 26.15 Grid Example: Get a Row 26.13 Intro to Grids 26.12 Intro to Sets 20.2 Fun Graphics Challenges 26.16 Data Structures Challenges 28.1 Game Design: Helicopter 16.1 Extra Karel Practice 17.1 Extra Karel Puzzles 27.1 Tic Tac Toe 25.1 Visualizing Music 22.1 Evolution Simulation 21.1 Conway's Game of Life 21.2 Connect Four 20.1 Fun Snake 26.5 Iterating Over an Array 19.1 Prime Numbers 18.1 Functions and Parameters Practice 26.13 Intro to Grids 26.12 Intro to Sets 26.11 When Do I Use an Object? 26.10 Iterating Over an Object 26.7 Removing an Element From an Array 26.6 Finding an Element in a List 26.5 Iterating Over an Array
 Standard 23.5 Arrays and Objects
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.8 Random Numbers 7.8 Random Numbers 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 16.3 Removing an Element From an Array 15.3 Key Events 16.2 Finding an Element in a List 14.1 Functions and Parameters Practice 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 12.1 Extra Karel Practice 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 14.1 Functions and Parameters Practice 13.1 Extra Karel Puzzles
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators 7.3 Comparison Operators 7.3 Comparison Operators 7.4 If Statements 7.4 If Statements 7.5 For Loops in JavaScript 7.5 For Loops in JavaScript 7.6 General For Loops 7.6 General For Loops 7.7 For Loop Practice 7.7 For Loop Practice 7.9 While Loops 7.9 While Loops 7.10 Loop and a Half 7.10 Loop and a Half 9.1 Functions and Parameters 1 9.1 Functions and Parameters 1 9.2 Functions and Parameters 2 9.2 Functions and Parameters 2 9.3 Functions and Parameters 3 9.3 Functions and Parameters 3 9.4 Functions and Return Values 1 9.4 Functions and Return Values 1 9.5 Functions and Return Values 2 9.5 Functions and Return Values 2 9.8 Random Ghosts 9.8 Random Ghosts 9.9 Bouncing Ball 9.9 Bouncing Ball 9.10 Mouse Events: Mouse Clicked 9.10 Mouse Events: Mouse Clicked 9.14 Iterating Over an Array 9.14 Iterating Over an Array 17.3 Iterating Over an Object 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 14.1 Functions and Parameters Practice 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 13.1 Extra Karel Puzzles 13.1 Extra Karel Puzzles 15.1 Mouse Events: Mouse Moved 15.1 Mouse Events: Mouse Moved 15.3 Key Events 16.2 Finding an Element in a List 16.3 Removing an Element From an Array 17.3 Iterating Over an Object 17.4 When Do I Use an Object? 17.5 Intro to Sets 17.6 Intro to Grids 17.8 Grid Example: Get a Row 17.9 Data Structures Challenges 12.1 Extra Karel Practice 14.1 Functions and Parameters Practice
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 12.1 Extra Karel Puzzles 12.1 Extra Karel Puzzles
 Standard 6.1 Intro to Lists/Arrays 6.2 Indexing Into an Array 6.3 Adding/Removing From an Array 6.4 Array Length and Looping Through Arrays 6.5 Iterating Over an Array 6.6 Finding an Element in a List 6.7 Removing an Element From an Array
 Standard 6.1 Intro to Lists/Arrays 6.2 Indexing Into an Array 6.3 Adding/Removing From an Array 6.4 Array Length and Looping Through Arrays 6.5 Iterating Over an Array 6.6 Finding an Element in a List 6.7 Removing an Element From an Array
 Standard 1.13 Parameters 1.13 Parameters 1.14 Using i in For Loops 1.14 Using i in For Loops 1.16 If Statements 1.16 If Statements 1.17 If/ Else Statements 1.17 If/ Else Statements 1.18 While Loops 1.18 While Loops 15.1 Extra Karel Puzzles 15.1 Extra Karel Puzzles
 Standard 7.2 Logical Operators 7.2 Logical Operators