Difference between print() and debugprint()

In iOS Swift development, both print() and debugPrint() are used to output information to the console, but they serve different purposes and provide different levels of detail.

Key Differences:

print() Function

print() writes the textual representations of the given items into the standard output. It provides a clean, human-readable format that’s ideal for displaying simple information.

Example:

print("hello")
// Output: hello

print(1...3)
// Output: 1...3
debugPrint() Function

debugPrint() writes the textual representations of the given items most suitable for debugging into the standard output. It adds additional information that is useful for debugging, including type information and other debug details

Example:

debugPrint("hello")
// Output: "hello" (note the quotation marks)

debugPrint(1...3)
// Output: ClosedRange(1...3)
When to Use Each
  • Use print() when you want clean, readable output for general debugging or when displaying formatted content like JSON.
  • Use debugPrint() when you need detailed type information, are debugging complex objects, or want to see the exact structure and metadata of your data.

Both functions accept multiple parameters and support custom separators and terminators, making them flexible tools for different debugging scenarios in Swift iOS development.

Specific Differences

The most noticeable difference is that debugPrint() includes type information and additional formatting:

  • Strings: debugPrint() adds quotation marks around strings to clearly identify them as string types
  • Ranges: Shows the actual type name (e.g., ClosedRange(1...5) instead of just 1...5)
  • Optionals: Displays optional wrapper information more explicitly
Debug Context

For complex objects like network responses, debugPrint() provides significantly more detailed information:

  • Network requests: Shows full request/response headers, status codes, timing information, and data size
  • Objects: Includes fully qualified type names and additional metadata
  • Collections: Maintains the same basic format but with enhanced type clarity.