if you annotate the this._getRecommend of created, you will not make a mistake. May I ask which problem it is?

< script type= "text/ecmascript-6" >
import {getRecommend} from "api/recommend"
import {ERR_OK} from" api/config"

export default {
created () {

this._getRecommend()

},
methods: {

_getRecommend() {
  getRecommend().then((res) => {
    if (res.code === ERR_OK) {
      console.log(res.data.slider)
    }
  })
}

}
}
< / script >

what result do you expect? What is the error message actually seen?