diff --git a/js/js.translator/testData/java/arrayList/cases/isEmpty.kt b/js/js.translator/testData/java/arrayList/cases/isEmpty.kt
index 334c8d92507..6143b2c2b5d 100644
--- a/js/js.translator/testData/java/arrayList/cases/isEmpty.kt
+++ b/js/js.translator/testData/java/arrayList/cases/isEmpty.kt
@@ -5,5 +5,5 @@ import java.util.ArrayList;
 fun box(): Boolean {
     val a = ArrayList<Int>();
     a.add(3)
-    return !(a.isEmpty()) && (ArrayList<Int>().isEmpty());
+    return !(a.isEmpty) && (ArrayList<Int>().isEmpty);
 }
\ No newline at end of file
diff --git a/js/js.translator/testData/java/arrayList/cases/misc.kt b/js/js.translator/testData/java/arrayList/cases/misc.kt
index cc745ecec4a..8205eac5fbd 100644
--- a/js/js.translator/testData/java/arrayList/cases/misc.kt
+++ b/js/js.translator/testData/java/arrayList/cases/misc.kt
@@ -28,7 +28,7 @@ fun box(): Boolean {
         return false
     }
 
-    if (a.isEmpty() || !ArrayList<Int>().isEmpty()) {
+    if (a.isEmpty || !ArrayList<Int>().isEmpty) {
         return false
     }
 
@@ -39,7 +39,7 @@ fun box(): Boolean {
     assertEquals(a, b, "a == b")
 
     a.clear()
-    assertEquals(true, a.isEmpty(), "a.isEmpty()")
+    assertEquals(true, a.isEmpty, "a.isEmpty")
 
 
     assertEquals(arrayOf(1, 500, 2, 3), list.toTypedArray(), "list.toTypedArray()")
diff --git a/js/js.translator/testData/kotlin_lib.js b/js/js.translator/testData/kotlin_lib.js
index c624cd32184..fbae61037c6 100644
--- a/js/js.translator/testData/kotlin_lib.js
+++ b/js/js.translator/testData/kotlin_lib.js
@@ -398,8 +398,10 @@
             }
             return true;
         },
-        isEmpty: function () {
-            return this.size === 0;
+        isEmpty: {
+            get: function () {
+                return this.size === 0;
+            }
         },
         iterator: function () {
             // TODO: Do not implement mutable iterator() this way, make abstract
@@ -970,7 +972,7 @@
     });
 
     Kotlin.collectionsMax = function (c, comp) {
-        if (c.isEmpty()) {
+        if (c.isEmpty) {
             //TODO: which exception?
             throw new Error();
         }
diff --git a/js/js.translator/testData/maps.js b/js/js.translator/testData/maps.js
index d927d4471fb..069712ee563 100644
--- a/js/js.translator/testData/maps.js
+++ b/js/js.translator/testData/maps.js
@@ -347,9 +347,11 @@
             bucketsByHash = {};
         };
 
-        this.isEmpty = function () {
-            return !buckets.length;
-        };
+        Object.defineProperty(this, "isEmpty", {
+            get: function () {
+                return !buckets.length;
+            }
+        });
 
         var createBucketAggregator = function (bucketFuncName) {
             return function () {
@@ -562,8 +564,10 @@
             iterator: function () {
                 return new Kotlin.PrimitiveHashMapValuesIterator(this.map.map, Object.keys(this.map.map));
             },
-            isEmpty: function () {
-                return this.map.isEmpty();
+            isEmpty: {
+                get: function () {
+                    return this.map.isEmpty;
+                }
             },
             size: {
                 get: function () {
@@ -594,8 +598,10 @@
                     return this.$size;
                 }
             },
-            isEmpty: function () {
-                return this.$size === 0;
+            isEmpty: {
+                get: function () {
+                    return this.$size === 0;
+                }
             },
             containsKey_za3rmp$: function (key) {
                 // TODO: should process "__proto__" separately?
@@ -669,7 +675,7 @@
                 return this.map;
             },
             toString: function() {
-                if (this.isEmpty()) return "{}";
+                if (this.isEmpty) return "{}";
                 var map = this.map;
                 var isFirst = true;
                 var builder = "{";
@@ -1039,9 +1045,9 @@
             return hashTable.size;
         }});
 
-        this.isEmpty = function () {
-            return hashTable.isEmpty();
-        };
+        Object.defineProperty(this, "isEmpty", { get: function () {
+            return hashTable.isEmpty;
+        }});
 
         this.clone = function () {
             var h = new HashSet(hashingFunction, equalityFunction);
diff --git a/js/js.translator/testData/rtti/cases/stdlibEmptyListClass.kt b/js/js.translator/testData/rtti/cases/stdlibEmptyListClass.kt
index ab230987b97..8b70de7fb53 100644
--- a/js/js.translator/testData/rtti/cases/stdlibEmptyListClass.kt
+++ b/js/js.translator/testData/rtti/cases/stdlibEmptyListClass.kt
@@ -11,7 +11,7 @@ fun box(): String {
     assertTrue((stdlib_emptyListClass(): Any) is List<*>, "stdlib_emptyListClass() is List<*> #2")
     assertTrue((stdlib_emptyListClass(): Any) !is ArrayList<*>, "stdlib_emptyListClass() !is ArrayList<*>")
 
-    assertTrue(stdlib_emptyListClass().isEmpty(), "stdlib_emptyListClass().isEmpty()")
+    assertTrue(stdlib_emptyListClass().isEmpty, "stdlib_emptyListClass().isEmpty")
     assertTrue(stdlib_emptyListClass().size() == 0, "stdlib_emptyListClass().size() == 0")
 
     return "OK"