diff --git a/src/me/topchetoeu/jscript/lib/ArrayLib.java b/src/me/topchetoeu/jscript/lib/ArrayLib.java
index 25756bc..b9b1065 100644
--- a/src/me/topchetoeu/jscript/lib/ArrayLib.java
+++ b/src/me/topchetoeu/jscript/lib/ArrayLib.java
@@ -6,6 +6,7 @@ import java.util.Stack;
 import me.topchetoeu.jscript.engine.Context;
 import me.topchetoeu.jscript.engine.values.ArrayValue;
 import me.topchetoeu.jscript.engine.values.FunctionValue;
+import me.topchetoeu.jscript.engine.values.NativeFunction;
 import me.topchetoeu.jscript.engine.values.ObjectValue;
 import me.topchetoeu.jscript.engine.values.Values;
 import me.topchetoeu.jscript.interop.Native;
@@ -22,10 +23,10 @@ import me.topchetoeu.jscript.interop.NativeSetter;
     }
     
     @Native(thisArg = true) public static ObjectValue values(Context ctx, ArrayValue thisArg) {
-        return Values.fromJavaIterable(ctx, thisArg);
+        return Values.toJSIterator(ctx, thisArg);
     }
     @Native(thisArg = true) public static ObjectValue keys(Context ctx, ArrayValue thisArg) {
-        return Values.fromJavaIterable(ctx, () -> new Iterator<Object>() {
+        return Values.toJSIterator(ctx, () -> new Iterator<Object>() {
             private int i = 0;
 
             @Override
@@ -40,7 +41,7 @@ import me.topchetoeu.jscript.interop.NativeSetter;
         });
     }
     @Native(thisArg = true) public static ObjectValue entries(Context ctx, ArrayValue thisArg) {
-        return Values.fromJavaIterable(ctx, () -> new Iterator<Object>() {
+        return Values.toJSIterator(ctx, () -> new Iterator<Object>() {
             private int i = 0;
 
             @Override
@@ -91,8 +92,11 @@ import me.topchetoeu.jscript.interop.NativeSetter;
     }
 
     @Native(thisArg = true) public static ArrayValue sort(Context ctx, ArrayValue arr, FunctionValue cmp) {
+        var defaultCmp = new NativeFunction("", (_ctx, thisArg, args) -> {
+            return Values.toString(ctx, args[0]).compareTo(Values.toString(ctx, args[1]));
+        });
         arr.sort((a, b) -> {
-            var res = Values.toNumber(ctx, cmp.call(ctx, null, a, b));
+            var res = Values.toNumber(ctx, (cmp == null ? defaultCmp : cmp).call(ctx, null, a, b));
             if (res < 0) return -1;
             if (res > 0) return 1;
             return 0;