Chapter 7 - Indexing and Slicing of Sequences

Question 1

What is indexing used for?

Answer 1

To access a certain position in the sequence.

Question 2

What does a positive index mean?

Answer 2

Using offsets starting from the first character.

Question 3

What does a negative index mean?

Answer 3

using offsets starting from the last character.

Question 4

What is slicing used for?

Answer 4

The act of selecting zero or more items of a sequence and forming them into a new sequence.

Question 5

What are the meanings of the first, second, and third numbers in a slicing operation?

Answer 5

first has offset 0, second has offset 1, and third has offset 3.