🔁 While Loop Explorer
Learn how while loops repeat actions until a condition is false!
📚 What is a While Loop?
A while loop repeats a block of code as long as a condition is TRUE.
Think of it like following directions: "Keep walking while the path continues."
You keep going until the path ends (condition becomes FALSE).
🔧 Parts of a While Loop
1️⃣ Condition
The test that determines if the loop continues
2️⃣ Loop Body
The code that runs each time through the loop
3️⃣ Update
Changes that bring you closer to ending the loop
4️⃣ Exit
When the condition becomes FALSE, the loop stops
💻 While Loop Syntax
while condition:
Example:
count = 0
while count < 5:
print(count)
count = count + 1
🎮 Interactive Demo: Counter Loop
🎯 Interactive Demo: Pattern Builder
⚠️ Warning: Infinite Loops!
If the condition never becomes FALSE, the loop runs forever! Always make sure your
loop has a way to end. Example of an infinite loop: while True: print("Forever!")
🏃 Karel Example: Move to Wall
while front_is_clear():
move()
This loop lets Karel move forward until there's a wall. The condition
front_is_clear()
checks before each move!
