vant-weapp/example/pages/popup/index.js

Page({

  data: {
    showPopup: false,
    showLeftPopup: false,
    showRightPopup: false,
    showTopPopup: false,
    showBottomPopup: false
  },

  togglePopup() {
    this.setData({
      showPopup: !this.data.showPopup
    });
  },

  toggleLeftPopup() {
    this.setData({
      showLeftPopup: !this.data.showLeftPopup
    });
  },

  toggleRightPopup() {
    this.setData({
      showRightPopup: !this.data.showRightPopup
    });
  },

  toggleBottomPopup() {
    this.setData({
      showBottomPopup: !this.data.showBottomPopup
    });
  },

  toggleTopPopup() {
    this.setData({
      showTopPopup: !this.data.showTopPopup
    });
  }
});