let const Store = {
states : {
  audioCurrentTime : 0,
  audio : null
  manualSet : false,
},
getters : {
  getAudioOBj : state => state.audio
},
mutations : {

  setAudioTime(state, time){

    state.manualSet = true;

    state.audio.currentTime = parseFloat(time)
  },

  setTracks : (state, payload) {

    if(state.audio == null){

      state.audio = new Audio(payload.url);

      state.audio.addEventListener('timeupdate', function(){

        if(state.manualSet){

          state.manualSet = false;
          /* return 0 when it called from $.store.commit('setAudioTime', 100) */
          console.log(this.currentTime)
        }

        state.audioCurrentTime = this.currentTime;

      })
    }else{
      state.audio.load(payload.url);
    }
  }
}