我正在使用Bootstrap 2.1.1作为网站。使用Bootstrap Carousel插件添加幻灯片时，幻灯片在到达最终幻灯片后结束，而不是循环播放。这显然是Bootstrap 2.x中的一个错误，已在Bootstrap 3中解决。
目前无法全面升级到Bootstrap 3，因此我只更新了Carousel插件。
然而，这导致第一张幻灯片转换为第二张幻灯片的问题，但随后幻灯片停止。
发生此JavaScript错误：
Uncaught TypeError：undefined不是函数js_plugins：482（相当于147）
以下是HTML标记：
<div class="container">
<div id="carousel" class="carousel slide loading-indicator" style="margin-top: -40px; margin-bottom: 0; {if segment_1 != ""}z-index: -10;{/if}">
<div class="carousel-inner">
{exp:low_reorder:entries set="homepage_keywords" channel="home"}
<div class="item{if count == 1} active{/if}">
<img src="{background_image}" alt="{keyword}" title="{keyword}" />
</div>
{/exp:low_reorder:entries}
{if segment_1 == ""}
<div class="carousel-caption">
<a href="{site_url}media/latest_news" style="colour: white !important; text-decoration: none !important;">
<p>
<strong>Latest News: </strong>
{exp:channel:entries channel="latest_news" limit="1" orderby="date" sort="desc"}
{title} →
{/exp:channel:entries}
</p>
</a>
</div>
{/if}
</div>
</div>
</div>
Bootstrap 3 Carousel插件JavaScript尚未修改，如下所示：
/* ========================================================================
* Bootstrap: carousel.js v3.2.0
* http://getbootstrap.com/javascript/#carousel
* ========================================================================
* Copyright 2011-2014 Twitter, Inc.
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
* ======================================================================== */
+function ($) {
'use strict';
// CAROUSEL CLASS DEFINITION
// =========================
var Carousel = function (element, options) {
this.$element = $(element).on('keydown.bs.carousel', $.proxy(this.keydown, this))
this.$indicators = this.$element.find('.carousel-indicators')
this.options = options
this.paused =
this.sliding =
this.interval =
this.$active =
this.$items = null
this.options.pause == 'hover' && this.$element
.on('mouseenter.bs.carousel', $.proxy(this.pause, this))
.on('mouseleave.bs.carousel', $.proxy(this.cycle, this))
}
Carousel.VERSION = '3.2.0'
Carousel.DEFAULTS = {
interval: 5000,
pause: 'hover',
wrap: true
}
Carousel.prototype.keydown = function (e) {
switch (e.which) {
case 37: this.prev(); break
case 39: this.next(); break
default: return
}
e.preventDefault()
}
Carousel.prototype.cycle = function (e) {
e || (this.paused = false)
this.interval && clearInterval(this.interval)
this.options.interval
&& !this.paused
&& (this.interval = setInterval($.proxy(this.next, this), this.options.interval))
return this
}
Carousel.prototype.getItemIndex = function (item) {
this.$items = item.parent().children('.item')
return this.$items.index(item || this.$active)
}
Carousel.prototype.to = function (pos) {
var that = this
var activeIndex = this.getItemIndex(this.$active = this.$element.find('.item.active'))
if (pos > (this.$items.length - 1) || pos < 0) return
if (this.sliding) return this.$element.one('slid.bs.carousel', function () {that.to(pos)}) // yes, "slid"
if (activeIndex == pos) return this.pause().cycle()
return this.slide(pos > activeIndex ? 'next' : 'prev', $(this.$items[pos]))
}
Carousel.prototype.pause = function (e) {
e || (this.paused = true)
if (this.$element.find('.next, .prev').length && $.support.transition) {
this.$element.trigger($.support.transition.end)
this.cycle(true)
}
this.interval = clearInterval(this.interval)
return this
}
Carousel.prototype.next = function () {
if (this.sliding) return
return this.slide('next')
}
Carousel.prototype.prev = function () {
if (this.sliding) return
return this.slide('prev')
}
Carousel.prototype.slide = function (type, next) {
var $active = this.$element.find('.item.active')
var $next = next || $active[type]()
var isCycling = this.interval
var direction = type == 'next' ? 'left' : 'right'
var fallback = type == 'next' ? 'first' : 'last'
var that = this
if (!$next.length) {
if (!this.options.wrap) return
$next = this.$element.find('.item')[fallback]()
}
if ($next.hasClass('active')) return (this.sliding = false)
var relatedTarget = $next[0]
var slideEvent = $.Event('slide.bs.carousel', {
relatedTarget: relatedTarget,
direction: direction
å})
this.$element.trigger(slideEvent)
if (slideEvent.isDefaultPrevented()) return
this.sliding = true
isCycling && this.pause()
if (this.$indicators.length) {
this.$indicators.find('.active').removeClass('active')
var $nextIndicator = $(this.$indicators.children()[this.getItemIndex($next)])
$nextIndicator && $nextIndicator.addClass('active')
}
var slidEvent = $.Event('slid.bs.carousel', { relatedTarget: relatedTarget, direction: direction }) // yes, "slid"
if ($.support.transition && this.$element.hasClass('slide')) {
$next.addClass(type)
$next[0].offsetWidth // force reflow
$active.addClass(direction)
$next.addClass(direction)
$active
.one('bsTransitionEnd', function () {
$next.removeClass([type, direction].join(' ')).addClass('active')
$active.removeClass(['active', direction].join(' '))
that.sliding = false
setTimeout(function () {that.$element.trigger(slidEvent)}, 0)
})
.emulateTransitionEnd($active.css('transition-duration').slice(0, -1) * 1000)
} else {
$active.removeClass('active')
$next.addClass('active')
this.sliding = false
this.$element.trigger(slidEvent)
}
isCycling && this.cycle()
return this
}
// CAROUSEL PLUGIN DEFINITION
// ==========================
function Plugin(option) {
return this.each(function () {
var $this = $(this)
var data = $this.data('bs.carousel')
var options = $.extend({}, Carousel.DEFAULTS, $this.data(), typeof option == 'object' && option)
var action = typeof option == 'string' ? option : options.slide
if (!data) $this.data('bs.carousel', (data = new Carousel(this, options)))
if (typeof option == 'number') data.to(option)
else if (action) data[action]()
else if (options.interval) data.pause().cycle()
})
}
var old = $.fn.carousel
$.fn.carousel = Plugin
$.fn.carousel.Constructor = Carousel
// CAROUSEL NO CONFLICT
// ====================
$.fn.carousel.noConflict = function () {
$.fn.carousel = old
return this
}
// CAROUSEL DATA-API
// =================
$(document).on('click.bs.carousel.data-api', '[data-slide], [data-slide-to]', function (e) {
var href
var $this = $(this)
var $target = $($this.attr('data-target') || (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '')) // strip for ie7
if (!$target.hasClass('carousel')) return
var options = $.extend({}, $target.data(), $this.data())
var slideIndex = $this.attr('data-slide-to')
if (slideIndex) options.interval = false
Plugin.call($target, options)
if (slideIndex) {$target.data('bs.carousel').to(slideIndex)}
e.preventDefault()
})
$(window).on('load', function () {
$('[data-ride="carousel"]').each(function () {
var $carousel = $(this)
Plugin.call($carousel, $carousel.data())
})
})
}(jQuery);
感谢您的帮助。
答案 0 :(得分：2)
导致问题的方法是属于bootstrap的.emulateTransitionEnd()。在加载transition.js
carousel.js插件