fix: don't use array length as precondition

lukeed · Jul 15, 2020 · 4d76378 · 4d76378
1 parent fd3d291
commit 4d76378
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/index.js b/src/index.js
@@ -4,8 +4,11 @@ export default function dequal(foo, bar) {
 	if (foo && bar && (ctor=foo.constructor) === bar.constructor) {
 		if (ctor === Date) return foo.getTime() === bar.getTime();
 		if (ctor === RegExp) return foo.toString() === bar.toString();
-		if (ctor === Array && (len=foo.length) === bar.length) {
+
+		if (ctor === Array) {
+			if ((len=foo.length) === bar.length) {
 			while (len-- && dequal(foo[len], bar[len]));
+			}
 			return len === -1;
 		}
 		if (ctor === Object) {