expressions

Question 1

what is the difference between an expression and a statement?

Answer 1

expressions have values. Statements don’t.

Question 2

Can if produce a value?

Answer 2

yes

Question 3

can match produce a value?

Answer 3

yes

Question 4

can a match expression be passed as a parameter to a function

Answer 4

yes

Question 5

what is the syntax for a match statement

Answer 5

let phrase = match something {
0 => "zero", 
1  => "two",
_ => "three"
}

Question 6

what is the syntax for the four looping expressions

Answer 6

while condition {}

while let pattern = expr {}

loop {}

for pattern in collection {}

Question 7

write a for loop that prints 1 through 5

Answer 7

for i in 1..6 {
println!(“{}”, i );
}