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Not the right nil
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| var dict: [String: Any?] = ["first": nil, "second": 2] | |
| if let val = dict["first"] { | |
| print(val) | |
| } | |
| // Output: nil | |
| dict["first"] = nil | |
| if let val = dict["first"] { | |
| print(val) | |
| } | |
| // No output |
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