diff --git a/JavaScript/actor-closure.js b/JavaScript/actor-closure.js
index 5ee6cd8..6710af0 100644
--- a/JavaScript/actor-closure.js
+++ b/JavaScript/actor-closure.js
@@ -33,9 +33,9 @@ class Point {
     this.y = y;
   }
 
-  move(x, y) {
-    this.x += x;
-    this.y += y;
+  move(dx, dy) {
+    this.x += dx;
+    this.y += dy;
   }
 
   clone() {
diff --git a/JavaScript/actor-compose.js b/JavaScript/actor-compose.js
index 01b9ca4..3662ef5 100644
--- a/JavaScript/actor-compose.js
+++ b/JavaScript/actor-compose.js
@@ -36,9 +36,9 @@ class Point {
     this.y = y;
   }
 
-  move(x, y) {
-    this.x += x;
-    this.y += y;
+  move(dx, dy) {
+    this.x += dx;
+    this.y += dy;
   }
 
   clone() {
diff --git a/JavaScript/actor-inheritance.js b/JavaScript/actor-inheritance.js
index 2bacedc..56325cb 100644
--- a/JavaScript/actor-inheritance.js
+++ b/JavaScript/actor-inheritance.js
@@ -35,9 +35,9 @@ class Point extends Actor {
     this.#y = y;
   }
 
-  move(x, y) {
-    this.#x += x;
-    this.#y += y;
+  move(dx, dy) {
+    this.#x += dx;
+    this.#y += dy;
   }
 
   clone() {
diff --git a/JavaScript/actor.js b/JavaScript/actor.js
index b611ef2..925e75a 100644
--- a/JavaScript/actor.js
+++ b/JavaScript/actor.js
@@ -11,9 +11,9 @@ class Point {
     this.#y = y;
   }
 
-  #move(x, y) {
-    this.#x += x;
-    this.#y += y;
+  #move(dx, dy) {
+    this.#x += dx;
+    this.#y += dy;
   }
 
   #clone() {
@@ -35,8 +35,8 @@ class Point {
     if (this.#processing) return;
     this.#processing = true;
     while (this.#queue.length) {
-      const { method, x, y, resolve } = this.#queue.shift();
-      if (method === 'move') resolve(this.#move(x, y));
+      const { method, x: dx, y: dy, resolve } = this.#queue.shift();
+      if (method === 'move') resolve(this.#move(dx, dy));
       if (method === 'clone') resolve(this.#clone());
       if (method === 'toString') resolve(this.#toString());
     }
diff --git a/JavaScript/aspect.js b/JavaScript/aspect.js
index 62a0597..ab74a5f 100644
--- a/JavaScript/aspect.js
+++ b/JavaScript/aspect.js
@@ -9,9 +9,9 @@ class Point {
     this.#y = y;
   }
 
-  move(x, y) {
-    this.#x += x;
-    this.#y += y;
+  move(dx, dy) {
+    this.#x += dx;
+    this.#y += dy;
   }
 
   clone() {
@@ -34,8 +34,8 @@ const aspect = (target, methodName, { before, after }) => {
 };
 
 aspect(Point.prototype, 'move', {
-  before(x, y) {
-    console.log(`Before move: ${this.toString()} moving by (${x},${y})`);
+  before(dx, dy) {
+    console.log(`Before move: ${this.toString()} moving by (${dx},${dy})`);
   },
   after() {
     console.log(`After move: ${this.toString()}`);
diff --git a/JavaScript/closure-class.js b/JavaScript/closure-class.js
index 530c36c..d67de58 100644
--- a/JavaScript/closure-class.js
+++ b/JavaScript/closure-class.js
@@ -1,17 +1,16 @@
 'use strict';
 
 class Point {
-  constructor(ax, ay) {
-    this.x = ax;
-    this.y = ay;
+  constructor(x, y) {
+    this.x = x;
+    this.y = y;
+		const move = (dx, dy) => {
+			this.x += dx;
+			this.y += dy;
+		};
     const clone = () => new Point(this.x, this.y);
     const toString = () => `(${this.x}, ${this.y})`;
-    return { clone, toString };
-  }
-
-  move(dx, dy) {
-    this.x += dx;
-    this.y += dy;
+    return { move, clone, toString };
   }
 }
 
diff --git a/JavaScript/event-aggregation.js b/JavaScript/event-aggregation.js
index ce9c63b..ef404d3 100644
--- a/JavaScript/event-aggregation.js
+++ b/JavaScript/event-aggregation.js
@@ -10,9 +10,9 @@ class Point {
     this.#x = x;
     this.#y = y;
 
-    emitter.on('move', ({ x, y }) => {
-      this.#x += x;
-      this.#y += y;
+    emitter.on('move', ({ x: dx, y: dy }) => {
+      this.#x += dx;
+      this.#y += dy;
     });
 
     emitter.on('clone', (callback) => {
diff --git a/JavaScript/event-class.js b/JavaScript/event-class.js
index e3d1c82..665bad9 100644
--- a/JavaScript/event-class.js
+++ b/JavaScript/event-class.js
@@ -9,9 +9,9 @@ class Point {
     this.#x = x;
     this.#y = y;
     this.#events = {
-      move: ({ x, y }) => {
-        this.#x += x;
-        this.#y += y;
+      move: ({ x: dx, y: dy }) => {
+        this.#x += dx;
+        this.#y += dy;
       },
       clone: () => new Point({ x: this.#x, y: this.#y }),
       toString: () => `(${this.#x}, ${this.#y})`,
diff --git a/JavaScript/event-compose.js b/JavaScript/event-compose.js
index 2b9ccbf..0c08cdd 100644
--- a/JavaScript/event-compose.js
+++ b/JavaScript/event-compose.js
@@ -11,9 +11,9 @@ class Point {
     this.#y = y;
     this.emitter = new EventEmitter();
 
-    this.emitter.on('move', ({ x, y }) => {
-      this.#x += x;
-      this.#y += y;
+    this.emitter.on('move', ({ x: dx, y: dy }) => {
+      this.#x += dx;
+      this.#y += dy;
     });
 
     this.emitter.on('clone', (callback) => {
diff --git a/JavaScript/memory-class.js b/JavaScript/memory-class.js
index 73eb942..bfeeb5f 100644
--- a/JavaScript/memory-class.js
+++ b/JavaScript/memory-class.js
@@ -14,9 +14,9 @@ class Point {
     }
   }
 
-  move(x, y) {
-    Atomics.add(this.view, 0, x);
-    Atomics.add(this.view, 1, y);
+  move(dx, dy) {
+    Atomics.add(this.view, 0, dx);
+    Atomics.add(this.view, 1, dy);
   }
 
   clone() {
diff --git a/JavaScript/oop-private.js b/JavaScript/oop-private.js
index dcf8ee1..3c951cc 100644
--- a/JavaScript/oop-private.js
+++ b/JavaScript/oop-private.js
@@ -9,9 +9,9 @@ class Point {
     this.#y = y;
   }
 
-  move(x, y) {
-    this.#x += x;
-    this.#y += y;
+  move(dx, dy) {
+    this.#x += dx;
+    this.#y += dy;
   }
 
   clone() {
diff --git a/JavaScript/oop-public.js b/JavaScript/oop-public.js
index ea66ced..01b92dd 100644
--- a/JavaScript/oop-public.js
+++ b/JavaScript/oop-public.js
@@ -6,9 +6,9 @@ class Point {
     this.y = y;
   }
 
-  move(x, y) {
-    this.x += x;
-    this.y += y;
+  move(dx, dy) {
+    this.x += dx;
+    this.y += dy;
   }
 
   clone() {
diff --git a/JavaScript/oop-static.js b/JavaScript/oop-static.js
index 0e48e6e..95f67f6 100644
--- a/JavaScript/oop-static.js
+++ b/JavaScript/oop-static.js
@@ -6,9 +6,9 @@ class Point {
     this.y = y;
   }
 
-  static move(point, x, y) {
-    point.x += x;
-    point.y += y;
+  static move(point, dx, dy) {
+    point.x += dx;
+    point.y += dy;
   }
 
   static clone({ x, y }) {
diff --git a/JavaScript/procedural.js b/JavaScript/procedural.js
index 5824903..57bc7ef 100644
--- a/JavaScript/procedural.js
+++ b/JavaScript/procedural.js
@@ -10,9 +10,9 @@ const clone = (point) => {
   return createPoint(x, y);
 };
 
-const move = (point, x, y) => {
-  point.x += x;
-  point.y += y;
+const move = (point, dx, dy) => {
+  point.x += dx;
+  point.y += dy;
 };
 
 const toString = (point) => {
diff --git a/JavaScript/prototype-assign.js b/JavaScript/prototype-assign.js
index b4b854a..8ceb1c2 100644
--- a/JavaScript/prototype-assign.js
+++ b/JavaScript/prototype-assign.js
@@ -4,9 +4,9 @@ const clone = function () {
   return new Point(this.x, this.y);
 };
 
-const move = function (x, y) {
-  this.x += x;
-  this.y += y;
+const move = function (dx, dy) {
+  this.x += dx;
+  this.y += dy;
 };
 
 const toString = function () {
diff --git a/JavaScript/prototype-new.js b/JavaScript/prototype-new.js
index 99a2f23..a194b2d 100644
--- a/JavaScript/prototype-new.js
+++ b/JavaScript/prototype-new.js
@@ -13,9 +13,9 @@ proto.clone = function () {
   return new Point(this.x, this.y);
 };
 
-proto.move = function (x, y) {
-  this.x += x;
-  this.y += y;
+proto.move = function (dx, dy) {
+  this.x += dx;
+  this.y += dy;
 };
 
 proto.toString = function () {
diff --git a/JavaScript/prototype-null.js b/JavaScript/prototype-null.js
index d4ae406..b5e4c0f 100644
--- a/JavaScript/prototype-null.js
+++ b/JavaScript/prototype-null.js
@@ -11,9 +11,9 @@ Point.prototype.clone = function () {
   return new Point(this.x, this.y);
 };
 
-Point.prototype.move = function (x, y) {
-  this.x += x;
-  this.y += y;
+Point.prototype.move = function (dx, dy) {
+  this.x += dx;
+  this.y += dy;
 };
 
 Point.prototype.toString = function () {
diff --git a/JavaScript/prototype-self.js b/JavaScript/prototype-self.js
index f0adf23..a10816d 100644
--- a/JavaScript/prototype-self.js
+++ b/JavaScript/prototype-self.js
@@ -13,9 +13,9 @@ proto.clone = function () {
   return createPoint(this.x, this.y);
 };
 
-proto.move = function (x, y) {
-  this.x += x;
-  this.y += y;
+proto.move = function (dx, dy) {
+  this.x += dx;
+  this.y += dy;
 };
 
 proto.toString = function () {
diff --git a/JavaScript/prototype.js b/JavaScript/prototype.js
index cdcb879..f815958 100644
--- a/JavaScript/prototype.js
+++ b/JavaScript/prototype.js
@@ -9,9 +9,9 @@ Point.prototype.clone = function () {
   return new Point(this.x, this.y);
 };
 
-Point.prototype.move = function (x, y) {
-  this.x += x;
-  this.y += y;
+Point.prototype.move = function (dx, dy) {
+  this.x += dx;
+  this.y += dy;
 };
 
 Point.prototype.toString = function () {