Question
Our program can still match patterns with unnamed placeholders. How would it affect the operation of the program if these unnamed placeholders were added to the database? What part of the program keeps them from being added?
Step 1
Unnamed placeholders in a pattern matching program are typically used to represent any value or sequence of values that can fit into a pattern without specifying what those values need to be. For example, in a pattern like "Hello, _! How are you?", the underscore Show more…
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