Handling Nil in Crystal Lang
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Have you run into an error that goes something like "undefined method 'id' for Nil (compile-time type is (User | Nil))". Understand the error and how to resolve it in this LuckyCast!
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TIMESTAMPS
0:00 Introduction
0:24 Code walkthrough
1:11 Error walkthrough
1:57 Fixing the error
2:45 Verifying the fix
3:43 Alternative solution
4:02 Outro