Does a function that reads external files qualify as a pure function?
- Yes, as long as it only reads and does not modify
- No, any file reading operation is impure
- Only if it's a text file
- Only if it's a small file
No, reading external files is considered a side effect, and pure functions should not have side effects. Pure functions should only operate on their input parameters and not rely on external factors such as file systems or databases.
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