Wednesday, 31 December 2025

Day 18:Ignoring enumerate()

 

๐Ÿ Python Mistakes Everyone Makes ❌

๐Ÿ Day 18: Ignoring enumerate()

When looping through a list, many developers manually manage counters—without realizing Python already provides a cleaner and safer solution.


❌ The Mistake

items = ["a", "b", "c"] i = 0 for item in items:
print(i, item)
i += 1

This works, but it’s not ideal.


❌ Why This Is a Problem

Manually managing counters:

  • Adds unnecessary code

  • Increases the chance of off-by-one errors

  • Makes the loop harder to read


✅ The Correct Way

items = ["a", "b", "c"]

for i, item in enumerate(items):
print(i, item)

Cleaner, clearer, and safer.


✔ Key Benefits of enumerate()

✔ Automatically tracks the index
✔ No manual counter needed
✔ Improves readability
✔ Reduces bugs


๐Ÿง  Simple Rule to Remember

๐Ÿ Use enumerate() when you need both index and value

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