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mateuszszklarek/casting_optional_to_generic_type.swift

Created February 1, 2019 18:23
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casting_optional_to_generic_type.swift
func forceCast<U>(_ value: Any?, to type: U.Type) -> U {
 return value as! U 
}
let value: Any? = 42
print(forceCast(value, to: Any.self))
// Prints "Optional(42)"
// (Prior to Swift 5, this would print "42".)
print(value as! Any)
// Prints "Optional(42)"
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