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refactor(reactivity): define hadKey if necessary (#288)

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edison 2019-10-15 23:59:40 +08:00 committed by Evan You
parent 4cee06ddab
commit b5209277de
1 changed files with 1 additions and 1 deletions
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2
packages/reactivity/src/baseHandlers.ts
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@ -38,12 +38,12 @@ function set(
receiver: any receiver: any
): boolean { ): boolean {
value = toRaw(value) value = toRaw(value)
const hadKey = hasOwn(target, key)
const oldValue = target[key] const oldValue = target[key]
if (isRef(oldValue) && !isRef(value)) { if (isRef(oldValue) && !isRef(value)) {
oldValue.value = value oldValue.value = value
return true return true
} }
const hadKey = hasOwn(target, key)
const result = Reflect.set(target, key, value, receiver) const result = Reflect.set(target, key, value, receiver)
// don't trigger if target is something up in the prototype chain of original // don't trigger if target is something up in the prototype chain of original
if (target === toRaw(receiver)) { if (target === toRaw(receiver)) {