Zig Academy · Lesson

Functions That Take a Type

Generics via comptime T parameters.

Generics, the Zig Way

Zig has no separate generics syntax. Instead, a function can accept a type as one of its parameters and use it like any other value. ✨

Because a type must be known when the code is built, the type parameter is always marked comptime. The caller passes a real type.

fn first(comptime T: type, items: []const T) T {
    return items[0];
}