Curriculum Memory ArrayList exercise 5 · fill-word
ArrayList
Fill the missing method name. The ArrayList exposes this for adding a value to the end. Same name as Go's slice helper. Six letters.
TypeScript reference
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About this theme
ArrayList(T) is Zig's growable slice — your TypeScript Array equivalent. In Zig 0.16 it's an unmanaged container by API convention: you initialize with the .empty literal, pass the allocator on every mutating call (append, insert, etc.), and call .deinit(allocator) to release. items is a []T view into the live elements; the capacity is hidden. The benefit of unmanaged: no per-list allocator pointer overhead, and the list type is a plain struct you can store in a hash map's value.