回答編集履歴
1
capture と passive の追加
answer
CHANGED
|
@@ -21,7 +21,10 @@
|
|
|
21
21
|
setIsHeightOver(false);
|
|
22
22
|
}
|
|
23
23
|
};
|
|
24
|
-
window.addEventListener("scroll", scrollAction
|
|
24
|
+
window.addEventListener("scroll", scrollAction, {
|
|
25
|
+
capture: false,
|
|
26
|
+
passive: true,
|
|
27
|
+
}); // 4.
|
|
25
28
|
scrollAction(); // 初期描画時に一度だけ判定する
|
|
26
29
|
|
|
27
30
|
return () => { // 5.
|