Set.difference is not actually used

zengm-games · Jan 31, 2025 · 433f301 · 433f301
1 parent 3cf4525
commit 433f301
Showing 1 changed file with 0 additions and 24 deletions.
diff --git a/src/common/polyfills-modern.ts b/src/common/polyfills-modern.ts
@@ -17,30 +17,6 @@ type SetReadOperations<T> = {
 	has(key: T): boolean;
 	keys(): IterableIterator<T>;
 };
-if (!Set.prototype.difference) {
-	Object.defineProperty(Set.prototype, "difference", {
-		value<T>(this: Set<T>, other: SetReadOperations<T>): Set<T> {
-			const result = new Set<T>(this);
-			if (this.size <= other.size) {
-				for (const elem of this) {
-					if (other.has(elem)) {
-						result.delete(elem);
-					}
-				}
-			} else {
-				for (const elem of other.keys()) {
-					if (result.has(elem)) {
-						result.delete(elem);
-					}
-				}
-			}
-			return result;
-		},
-		writable: true,
-		enumerable: false,
-		configurable: true,
-	});
-}
 if (!Set.prototype.isSubsetOf) {
 	Object.defineProperty(Set.prototype, "isSubsetOf", {
 		value<T>(this: Set<T>, other: SetReadOperations<T>): boolean {