1. Gavin Restifo March 1, 2019 Today: Repetition Part 2 - For Loops
CS 1110
Gavin Restifo
March 1, 2019
Today: Repetition Part 2 - For Loops

3. Last time While loops Strategies for repetitive code Needs 3 things
Condition
Something to be repeated
Adjust the condition
Strategies for repetitive code
Top down
Start with the loop
Bottom up
Start with everything else and repeat

4. Today: For loops Similar to while
Does not require a condition
Instead requires a collection
Almost everything you can do with while you can do with for
What might you not be able to do with for?
Keywords:
for in

5. Syntax for something in collection: # Repeat this code For Something
Iterate through whatever you give it
Something
Assigned in the loop In
Specifies the set of iteration
Collection
Whatever we want to loop through

6. Collections (so far)
Strings
Ranges
Lists
Tuples*