Mission #9

⚡Lesson 9: Functions -- Your Custom Superpowers

Create your own reusable code blocks!

+200 XP

Lesson 9: Functions -- Your Custom Superpowers

You have already used built-in Python functions like print() and len(). With functions, you can bundle your own code into custom named spells that you can reuse anytime.

Key Concepts to Remember:

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The def Keyword: Teaches Python a new recipe: def cast_spell(name):.
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Parameters (Ingredients): Variables passed inside the parentheses for the function to work with.
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The return Statement: Hands back a calculated answer to wherever the function was called.
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Calling the Function: Defining a function teaches Python the spell; you must call it with () to cast it.

💻Defining and Calling Custom Spells (IDE Syntax Colors)

def calculate_damage(level):

return level * 15

power = calculate_damage(5)

print(f"Spell dealt {power} damage!")

💡 calculate_damage takes level 5, multiplies by 15, and returns 75.

💡 Pro Tip: Do not forget the colon (:) at the end of the def line and indentation on the lines inside.