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class Alert {
  constructor(element) {
    this._element = element
  }

// Getters

static get VERSION() {
    return VERSION
  }

// Public

close(element) {
    let rootElement = this._element
    if (element) {
      rootElement = this._getRootElement(element)
    }

const customEvent = this._triggerCloseEvent(rootElement)

if (customEvent.isDefaultPrevented()) {
      return
    }

this._removeElement(rootElement)
  }

dispose() {
    $.removeData(this._element, DATA_KEY)
    this._element = null
  }

// Private

_getRootElement(element) {
    const selector = Util.getSelectorFromElement(element)
    let parent     = false

if (selector) {
      parent = document.querySelector(selector)
    }

if (!parent) {
      parent = $(element).closest(`.${ClassName.ALERT}`)[0]
    }

return parent
  }

_triggerCloseEvent(element) {
    const closeEvent = $.Event(Event.CLOSE)

$(element).trigger(closeEvent)
    return closeEvent
  }

_removeElement(element) {
    $(element).removeClass(ClassName.SHOW)

if (!$(element).hasClass(ClassName.FADE)) {
      this._destroyElement(element)
      return
    }

const transitionDuration = Util.getTransitionDurationFromElement(element)

$(element)
      .one(Util.TRANSITION_END, (event) => this._destroyElement(element, event))
      .emulateTransitionEnd(transitionDuration)
  }

_destroyElement(element) {
    $(element)
      .detach()
      .trigger(Event.CLOSED)
      .remove()
  }

// Static

static _jQueryInterface(config) {
    return this.each(function () {
      const $element = $(this)
      let data       = $element.data(DATA_KEY)

if (!data) {
        data = new Alert(this)
        $element.data(DATA_KEY, data)
      }

if (config === 'close') {
        data[config](this)
      }
    })
  }

static _handleDismiss(alertInstance) {
    return function (event) {
      if (event) {
        event.preventDefault()
      }

alertInstance.close(this)
    }
  }
}