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Clayton Walker 2015-10-08 23:27:19 -04:00
parent ad16a31c07
commit b4860de42f
1 changed files with 5 additions and 5 deletions
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@ -82,9 +82,9 @@ if someOptionalString != nil {
someOptionalString = nil someOptionalString = nil
/* /*
To get the underlying type from an optional, you unwrap it using the Trying to use ! to access a non-existent optional value triggers a runtime
force unwrap operator (!). Only use the unwrap operator if you're sure error. Always make sure that an optional contains a non-nil value before
the underlying value isn't nil. using ! to force-unwrap its value.
*/ */
// implicitly unwrapped optional // implicitly unwrapped optional