Page({
  data: {
    log: [],
    requireFailure: true,
  },
  singleTap(e) {
    console.warn('single tap', e)

    const { log } = this.data
    log.push('single tap triggered')
    this.setData({
      log,
    })
  },
  doubleTap(e) {
    console.warn('double tap', e)

    const { log } = this.data
    log.push('double tap triggered')
    this.setData({
      log,
    })
  },
  handletap() {
    const { requireFailure } = this.data
    this.setData({
      requireFailure: !requireFailure,
    })
  },
})