Go Generics and Type Parameters

Compatibility: Generics require Go 1.18+.

Resource Routing

• references/CONSTRAINTS.md - Read when composing constraints, using type sets, or choosing between generics and interfaces.

When to Use Generics

Start with concrete types. Generalize only when a second type appears.

Prefer Generics When

• Multiple types share identical logic (sorting, filtering, map/reduce)
• You would otherwise rely on any and excessive type switching
• You are building a reusable data structure (concurrent-safe set, ordered map)

Avoid Generics When