Map

Key-value map using parallel arrays internally.

Constructor

const m = new Map<string, number>();

Methods

m.set(key, value)

m.set("alice", 42);
m.set("bob", 99);

m.get(key)

const val = m.get("alice");    // 42

m.has(key)

if (m.has("alice")) {
  console.log("found");
}

m.delete(key)

m.delete("alice");    // boolean

m.clear()

m.clear();

m.size

console.log(m.size);    // number of entries

LLVM Struct

%StringMap = type { i8**, i8**, i32, i32 }

Fields: keys array, values array, size, capacity. Uses parallel arrays with linear scan — optimized for small to medium maps.