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!

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

iOS Error Handling in Swift Error Handling Handling Errors

Johnny Nguyen
Johnny Nguyen
3,875 Points
Posted by Johnny Nguyen
Johnny Nguyen
3,875 Points

Do we need to use error handling in every function we have?

Or just complicate function that we know that there will contain the errors

2 Answers

Bruce Röttgers
Bruce Röttgers
18,211 Points
Bruce Röttgers
Bruce Röttgers
18,211 Points

If they are ‚throwing‘ you need to do error handling.

Johnny Nguyen
Johnny Nguyen
3,875 Points
Johnny Nguyen
Johnny Nguyen
3,875 Points

But when do we know that it's throwing

Bruce Röttgers
Bruce Röttgers
18,211 Points
Bruce Röttgers
Bruce Röttgers
18,211 Points

Indicated by Keyword throws in function declaration: func test() throws { }