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Junior — Middle

Kuidas mõjutab väikese või suure suurusega slice'i edastamine funktsioonile jõudluse ja mälu kasutamise osas?

sobes.tech AI

Vastus AI-lt

In Go, a slice is a structure that contains a pointer to an array, a length, and a capacity. When passing a slice to a function, exactly this structure (about 24 bytes) is copied, not the entire array.

  • For small slices (a few elements), copying the structure hardly affects performance.
  • For large slices, only the structure is copied, not all data, so memory and time costs are minimal.

Thus, passing a slice is efficient regardless of size, as data is not copied but a reference to the array is passed.