Grok Worksheet 8: Iteration

Question 1

What are four advantages of using iteration over manually entering repeated code? Or disadvantages of using repeated code?

Answer 1

1. Without iteration there would be way more lines of code
2. Without iteration coding is more tedious
3. Without iteration coding is more error-prone
4. Manual coding without iteration does not scale
5. With iteration if the code changes then you need to make far fewer changes to the code.

Question 2

Describe the *= operator.

Answer 2

c *= 2 is the same as c = c * 2

Question 3

Describe the /= operator.

Answer 3

c /= 2 is the same as c = c / 2

Question 4

Describe the += operator.

Answer 4

c += 2 is the same as c = c + 2

Question 5

Describe the -= operator.

Answer 5

c -= 2 is the same as c = c - 2

Question 6

Describe the //= operator.

Answer 6

c //= 2 is the same as c = c // 2

Question 7

Describe the %= operator.

Answer 7

c %= 2 is the same as c = c % 2

Question 8

Describe the **= operator.

Answer 8

c = 2 is the same as c = c2