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Nil-Safe Operators

Nil-safe operators handle null values safely.

Why this exists​

Nil-safe operators prevent errors when working with potentially null data.

How it works​

The ?? operator provides defaults for null values.

Examples​

set value = null
say value ?? "default"  # "default"

Common mistakes​

  • Using ?? instead of == for comparison
  • Nesting nil-safe operators incorrectly