Index
Domain: Programming Fundamentals
🎯 Motivation
To access a specific element in a list or string, you need a position number - an index.
📋 Concrete Example
name = 'Alice' - name[0] is A, name[1] is l. Python also counts from the end: name[-1] is e.
🔗 Analogy
House numbers on a street - each house has a number, and you find it by counting from the start (or from the end if using negatives).