refactor(reactivity): reduce variable access (#4366)

2021-08-18 00:11:52 +08:00 · 2021-08-18 00:11:52 +08:00 · d8da4214fc
commit d8da4214fc
parent c68cba82ea
1 changed files with 2 additions and 3 deletions
--- a/packages/reactivity/src/ref.ts
+++ b/packages/reactivity/src/ref.ts
@ -221,9 +221,8 @@ export function toRef<T extends object, K extends keyof T>(
  object: T,
  key: K
 ): ToRef<T[K]> {
-  return isRef(object[key])
-    ? object[key]
-    : (new ObjectRefImpl(object, key) as any)
+  const val = object[key]
+  return isRef(val) ? val : (new ObjectRefImpl(object, key) as any)
 }

 // corner case when use narrows type