add equality collection element iterators

src/equality-set.ts

@@ -7,6 +7,7 @@ export interface EqualitySet<T> extends Iterable<T> {
   contains(obj: T): boolean;
   remove(obj: T): boolean;
   clear(): void;
+  values(): IterableIterator<T>;
 }
 
 class NativeEqualitySet<T> implements EqualitySet<T> {
@@ -34,6 +35,10 @@ class NativeEqualitySet<T> implements EqualitySet<T> {
     this.#set.clear();
   }
 
+  values() {
+    return this.#set.values();
+  }
+
   [Symbol.iterator]() {
     return this.#set[Symbol.iterator]();
   }
@@ -88,6 +93,10 @@ class CustomEqualitySet<T> implements EqualitySet<T> {
     this.#list.length = 0;
   }
 
+  values() {
+    return this[Symbol.iterator]();
+  }
+
   [Symbol.iterator]() {
     return this.#list[Symbol.iterator]();
   }