vue教程中的_.extend()是什么意思？

Question

Answer 1

Dell 2019-11-24 16:01:29

人家写的很明确，和Object.assign一致的作用呀

• 提问者 韶华_易逝 #1

  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 <Root>)
  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)