Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
ryan weeber
Courses Plus Student 1,082 PointsWhy can't we say if var = //optional unwrapping We can only use if let. Thank you.
I'm curious to know why it has to be a constant declaration and not a variable when safely unwrapping optionals.
ryan weeber
Courses Plus Student 1,082 PointsI see now, thank you.
1 Answer
J.D. Sandifer
18,813 PointsJust reposting the solution above so the answer shows up as answered:
"in previous video Amit says you can also use variable so we don't have to use constant , you can try it (i have tried it on optional example, it works ) . And also it bound to your function type."
gökhan sayılgan
2,285 Pointsgökhan sayılgan
2,285 Pointsin previous video Amit says you can also use variable so we don't have to use constant , you can try it (i have tried it on optional example, it works ) . And also it bound to your function type.