🐛 bug(extend): fix TypeError: Cannot redefine property: $i18n (#422) by

@HadiChen * fix TypeError: Cannot redefine property: $i18n fix #421 * flow:$FlowFixMe with object literal
kazupon · Oct 14, 2018 · cb19082 · cb19082
1 parent 43931f5
commit cb19082
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/src/extend.js b/src/extend.js
@@ -1,10 +1,12 @@
 /* @flow */
 
 export default function extend (Vue: any): void {
-  // $FlowFixMe
-  Object.defineProperty(Vue.prototype, '$i18n', {
-    get () { return this._i18n }
-  })
+  if (!Vue.prototype.hasOwnProperty('$i18n')) {
+    // $FlowFixMe
+    Object.defineProperty(Vue.prototype, '$i18n', {
+      get () { return this._i18n }
+    })
+  }
 
   Vue.prototype.$t = function (key: Path, ...values: any): TranslateResult {
     const i18n = this.$i18n