6. Repeating Things With Loops

• 6.1. Iteration
  • 6.1.1. Don’t Repeat Yourself
• 6.2. for Loops
  • 6.2.1. for Loop Syntax
    • 6.2.1.1. Line By Line
    • 6.2.1.2. Begin Counting at 0
  • 6.2.2. Check Your Understanding
• 6.3. More on range
  • 6.3.1. Set Start and End Values
  • 6.3.2. Set a Step Value
  • 6.3.3. Try It!
  • 6.3.4. Use Variables in range
  • 6.3.5. Use Expressions in range
  • 6.3.6. Check Your Understanding
• 6.4. Iteration Improves the Turtle Program
  • 6.4.1. How About Drawing Other Shapes?
    • 6.4.1.1. Now Add Variables!
• 6.5. Loop Through a String
  • 6.5.1. Characters Instead of Integers
  • 6.5.2. Characters Another Way
  • 6.5.3. Check Your Understanding
• 6.6. Loops With Conditions
  • 6.6.1. Repeating a Check
  • 6.6.2. Looping if
• 6.7. The Accumulator Pattern
  • 6.7.1. Keeping a Running Total
    • 6.7.1.1. Adding 1...num
    • 6.7.1.2. Building a String
  • 6.7.2. Reversing a String
  • 6.7.3. Decreasing Total
  • 6.7.4. Check Your Understanding
• 6.8. while Loops
  • 6.8.1. while Loop Syntax
  • 6.8.2. Control Flow
  • 6.8.3. for Loops Rewritten as while Loops
    • 6.8.3.1. Try It!
  • 6.8.4. Input Validation
  • 6.8.5. Which Loop To Use?
    • 6.8.5.1. for Pros and Cons
    • 6.8.5.2. while Pros and Cons
  • 6.8.6. Check Your Understanding
• 6.9. Infinite Loops
  • 6.9.1. Coding Infinity
  • 6.9.2. Fun Fact
  • 6.9.3. Check Your Understanding
• 6.10. Ending a Loop With break
• 6.11. Exercises: Loops
  • 6.11.1. for Practice
    • 6.11.1.1. Bonus
  • 6.11.2. while Practice
  • 6.11.3. The Accumulator Pattern
• 6.12. Project: Turtle Loops
  • 6.12.1. Part A - Polygons and Sprites
  • 6.12.2. Part B - Clock Face
  • 6.12.3. Part C - Nested Loops
  • 6.12.4. Part D - Polygons With Sprites
  • 6.12.5. Part E - Draw Something New