perf: improve the performance of getNow (#5944)

2022-05-23 08:36:57 +08:00
parent 0cd21ba77c
commit 3bdc41dff3
1 changed files with 1 additions and 1 deletions
--- a/packages/runtime-dom/src/modules/events.ts
+++ b/packages/runtime-dom/src/modules/events.ts
@@ -25,7 +25,7 @@ const [_getNow, skipTimestampCheck] = /*#__PURE__*/ (() => {
      // if the low-res timestamp which is bigger than the event timestamp
      // (which is evaluated AFTER) it means the event is using a hi-res timestamp,
      // and we need to use the hi-res version for event listeners as well.
-      _getNow = () => performance.now()
+      _getNow = performance.now.bind(performance)
    }
    // #3485: Firefox <= 53 has incorrect Event.timeStamp implementation
    // and does not fire microtasks in between event propagation, so safe to exclude.