How to use the jquery.Event function in jquery

hide(callback) {
    const tip       = this.getTipElement()
    const hideEvent = $.Event(this.constructor.Event.HIDE)
    const complete = () => {
      if (this._hoverState !== HoverState.SHOW && tip.parentNode) {
        tip.parentNode.removeChild(tip)
      }

      this._cleanTipClass()
      this.element.removeAttribute('aria-describedby')
      $(this.element).trigger(this.constructor.Event.HIDDEN)
      if (this._popper !== null) {
        this._popper.destroy()
      }

      if (callback) {
        callback()
      }
    }

modalBody.scrollTop = 0
    } else {
      this._element.scrollTop = 0
    }

    if (transition) {
      Util.reflow(this._element)
    }

    $(this._element).addClass(ClassName.SHOW)

    if (this._config.focus) {
      this._enforceFocus()
    }

    const shownEvent = $.Event(Event.SHOWN, {
      relatedTarget
    })

    const transitionComplete = () => {
      if (this._config.focus) {
        this._element.focus()
      }
      this._isTransitioning = false
      $(this._element).trigger(shownEvent)
    }

    if (transition) {
      const transitionDuration  = Util.getTransitionDurationFromElement(this._dialog)

      $(this._dialog)
        .one(Util.TRANSITION_END, transitionComplete)

this._dialog.querySelector(Selector.MODAL_BODY).scrollTop = 0
    } else {
      this._element.scrollTop = 0
    }

    if (transition) {
      Util.reflow(this._element)
    }

    $(this._element).addClass(ClassName.SHOW)

    if (this._config.focus) {
      this._enforceFocus()
    }

    const shownEvent = $.Event(Event.SHOWN, {
      relatedTarget
    })

    const transitionComplete = () => {
      if (this._config.focus) {
        this._element.focus()
      }
      this._isTransitioning = false
      $(this._element).trigger(shownEvent)
    }

    if (transition) {
      const transitionDuration  = Util.getTransitionDurationFromElement(this._dialog)

      $(this._dialog)
        .one(Util.TRANSITION_END, transitionComplete)

const complete = () => {
      const hiddenEvent = $.Event(Event.HIDDEN, {
        relatedTarget: this._element
      })

      const shownEvent = $.Event(Event.SHOWN, {
        relatedTarget: previous
      })

      $(previous).trigger(hiddenEvent)
      $(this._element).trigger(shownEvent)
    }

show() {
    if ($(this.element).css('display') === 'none') {
      throw new Error('Please use show on visible elements')
    }

    const showEvent = $.Event(this.constructor.Event.SHOW)
    if (this.isWithContent() && this._isEnabled) {
      $(this.element).trigger(showEvent)

      const shadowRoot = Util.findShadowRoot(this.element)
      const isInTheDom = $.contains(
        shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement,
        this.element
      )

      if (showEvent.isDefaultPrevented() || !isInTheDom) {
        return
      }

      const tip   = this.getTipElement()
      const tipId = Util.getUID(this.constructor.NAME)

Collapse.prototype.close = function() {
  if (this.transitioning || !this.$element.hasClass('am-in')) {
    return;
  }

  var startEvent = $.Event('close.collapse.amui');
  this.$element.trigger(startEvent);

  if (startEvent.isDefaultPrevented()) {
    return;
  }

  this.$element.height(this.$element.height()).redraw();

  this.$element.addClass('am-collapsing').
    removeClass('am-collapse am-in');

  this.transitioning = 1;

  var complete = function() {
    this.transitioning = 0;
    this.$element

  const keydownEvent = (options = { keyCode: 13, metaKey: true }) => $.Event('keydown', options);

show() {
    if ($(this.element).css('display') === 'none') {
      throw new Error('Please use show on visible elements')
    }

    const showEvent = $.Event(this.constructor.Event.SHOW)
    if (this.isWithContent() && this._isEnabled) {
      $(this.element).trigger(showEvent)

      const shadowRoot = Util.findShadowRoot(this.element)
      const isInTheDom = $.contains(
        shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement,
        this.element
      )

      if (showEvent.isDefaultPrevented() || !isInTheDom) {
        return
      }

      const tip   = this.getTipElement()
      const tipId = Util.getUID(this.constructor.NAME)

hide(callback) {
    const tip       = this.getTipElement()
    const hideEvent = $.Event(this.constructor.Event.HIDE)
    const complete = () => {
      if (this._hoverState !== HOVER_STATE_SHOW && tip.parentNode) {
        tip.parentNode.removeChild(tip)
      }

      this._cleanTipClass()
      this.element.removeAttribute('aria-describedby')
      $(this.element).trigger(this.constructor.Event.HIDDEN)
      if (this._popper !== null) {
        this._popper.destroy()
      }

      if (callback) {
        callback()
      }
    }

show() {
    if ($(this.element).css('display') === 'none') {
      throw new Error('Please use show on visible elements')
    }

    const showEvent = $.Event(this.constructor.Event.SHOW)
    if (this.isWithContent() && this._isEnabled) {
      $(this.element).trigger(showEvent)

      const shadowRoot = Util.findShadowRoot(this.element)
      const isInTheDom = $.contains(
        shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement,
        this.element
      )

      if (showEvent.isDefaultPrevented() || !isInTheDom) {
        return
      }

      const tip   = this.getTipElement()
      const tipId = Util.getUID(this.constructor.NAME)