Assessments
Chapter 1, Quick Introduction to Rust
Question 1
What is the difference between str and String?
Answer
A String is a reference stored in the stack that points to str, which is the data stored in the heap.
Question 2
Why can't string literals be passed through a function (string literal meaning str as opposed to &str)?
Answer
Because we do not know the size of a string literal at compile time. A String reference, on the other hand, is fixed, which is why it can be passed through to the function.
Question 3
How do we access the data belonging to a key in a hash map?
Answer
We use the get function, and then unwrap it since the get function merely returns an Option struct.
Question 4
When a function results in an error, can we handle ...
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