Component({
  properties: {
    show: {
      type: Boolean,
      value: true,
    },
    duration: {
      type: Number,
      value: 300,
    },
    right: {
      type: Number,
      value: 10,
    },
    bottom: {
      type: Number,
      value: 120,
    },
    zIndex: {
      type: Number,
      value: 100,
    },
  },

  methods: {
    scrollToTop() {
      const { duration } = this.data;

      wx.pageScrollTo({
        scrollTop: 0,
        duration,
      });
    },
  },
});