Swift try catch error handling

Error handling in swift

 

Try catch with throw makes error handling nicely in code.

 

let's talk about use cases and code example!

 

 

1. Method with throws

 

 

You can create method with throw easily.

 

Method with throw should call with try catch

otherwise you get "Call can throw but is not marked with try" error.

 

 

 

2. Struct initializer with throw

You can also use throw with struct init method.

 

This especially comes in handy when you want to validate properties for initializing a certain object.

 

 

 

 

You can create object like this. The catch block is only called when an error occurs.

 

Happy codding :)