try-catch exceptions in Swift [duplicate]

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It doesn’t have exception handling, and this discussion in the developer forum discusses why it may be so:

but keep in mind that Cocoa and Cocoa Touch traditionally don’t intend
for you to catch exceptions; they intend for you to not cause them to
be thrown in the first place. Ordinary errors should be handled with
optional types and inout NSError parameters; you should address any
situation that causes an assertion to fail (which seems to be the only
exception-throwing mechanism in Swift) by writing better code.

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