回答編集履歴

2016/04/11 01:00

投稿

スコア5223

test CHANGED Viewed

@@ -40,7 +40,7 @@
     let x = 0, y = 0, radius = 50, vx = 2, vy = 2, cnt = 0;
-    let timer = setInterval(function self() {
+    let timer = setInterval(() => {
       ++cnt;
@@ -120,7 +120,7 @@
     let x = 0, y = 0, radius = 50, vx = 2, vy = 2, cnt = 0;
-    let timer = setInterval(function self() {
+    let timer = setInterval(() => {
       ++cnt;
@@ -206,9 +206,9 @@
     let x = 0, y = 0, radius = 50, vx = 2, vy = 2;
-    requestAnimationFrame(function self() {
+    requestAnimationFrame(function draw() {
-      requestAnimationFrame(self);
+      requestAnimationFrame(draw);
       ctx.clearRect(0, 0, canvas.width, canvas.height);