但是我像下面那么些直接就报错了
_.extend(this.object, {
age: 27,
favoriteColor: 'Vue Green'
})
错误代码
[Vue warn]: Error in v-on handler: "ReferenceError: _ is not defined"
(found in )
warn @ vue.js:634
logError @ vue.js:1893
globalHandleError @ vue.js:1888
handleError @ vue.js:1848
invokeWithErrorHandling @ vue.js:1871
invoker @ vue.js:2188
original._wrapper @ vue.js:7541
vue.js:1897 ReferenceError: _ is not defined
at Vue.changeList (3-8.html:71)
at invokeWithErrorHandling (vue.js:1863)
at HTMLButtonElement.invoker (vue.js:2188)
at HTMLButtonElement.original._wrapper (vue.js:7541)
