return stopper function as the result of record

2018-12-02 22:37:28 +08:00
parent b7e7f12d32
commit 78967192fc
3 changed files with 105 additions and 93 deletions
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -11,8 +11,9 @@ export function on(
  fn: EventListenerOrEventListenerObject,
  target: Document | Window = document,
 ): listenerHandler {
-  target.addEventListener(type, fn, { capture: true, passive: true });
-  return () => target.removeEventListener(type, fn);
+  const options = { capture: true, passive: true };
+  target.addEventListener(type, fn, options);
+  return () => target.removeEventListener(type, fn, options);
 }

 export const mirror: Mirror = {