将所有孩子设置为最大孩子的身高

Question

我差不多完成了创建jQuery幻灯片。除了幻灯片的高度始终是第一个显示的幻灯片的高度而不是幻灯片放映中弹出幻灯片的最大幻灯片这一事实外，它的工作正常。您可以在此处看到：http://www.renegademagsu.com。我在StackOverflow上找到了一些关于这个问题的jQuery解决方案，但似乎没有一个能为我工作。

我需要遍历页面上的每个.slideshow元素，然后遍历每个当前选定的幻灯片幻灯片，找到最大高度，并将其应用于该幻灯片中的所有幻灯片。以下是我认为可行的编码：

var maxheight = 0;
$('.slideshow').each(function() {
    $(this).children().each(function(){
        maxheight = ($(this).height() > maxheight ? $(this).height() : maxheight);
        console.log(maxheight);
    })
    $(this).children().height(maxheight);
    console.log('Final:' + maxheight);
    maxheight = 0;
})

但这完全搞砸了幻灯片，这可以在这个JSFiddle中看到：http://jsfiddle.net/B4rqz/

如果有人能帮我解决这个问题，我会非常感激。这是我的代码：

HTML：

<div class="container">
<div class="post-container">
    <div class="post-content">
                    <div class="post-meta">
            <h3>Date: May 9, 2014 | Author: Noelle Devoe | <a href="http://renegademagsu.com/?p=195/#comments"><span class="dsq-postid" rel="195 http://renegademagsu.com/?p=195">0 Comments</span></a></h3>
        </div>
        <div class="post">
            <a href="http://renegademagsu.com/?p=195">
                <h1>6 Moments That Denzel Washington was a bad ass</h1>
            </a>
                                                                                            <div class="slideshow">
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/training-day.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>1. Training Day</h1>
                        <p class="slideCaption">
                            Who could forget Denzel’s Academy Award winning role as Detective Alonzo Harris, the corrupt and rogue narcotics officer who plays by his own rules.  A memorable scene is when Alonzo and the rookie cop Jake, stop two guys from raping a 14-year-old girl. While Jake chooses to arrest them, Alonzo grabs one of the men, puts a knife to his throat, and then points 2 guns at his crouch, threatening to shoot him.  Instead of shooting he punches him and says, “Man I’m thirsty, I could use a beer.”                              </p>
                        <p class="slideCredit">
                            <a href="http://roley.tumblr.com/post/8472254874/told-me-to-suck-your-dick-is-that-what-you" target="_blank">roley.tumblr.com</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/man-on-fire.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>2. Man on Fire</h1>
                        <p class="slideCaption">
                            If you want to learn about revenge, just watch Denzel in action in this movie after kidnappers try to take little Dakota Fanning. Denzel, her bodyguard, gets ahold of a corrupt cop who he needs answers from, and interrogates him by sticking a detonator up his rectum, threatening to blow the cop up if he doesn’t get information. However, when he finally gets the answers he’s looking for, Denzel detonates the bomb anyway and walks away from the explosion in slow motion. Total bad ass move.                             </p>
                        <p class="slideCredit">
                            <a href="http://www.thefancarpet.com/uploaded_assets/images/gallery/1498/Man_On_Fire_18347_Medium.jpg" target="_blank">The Fan Carpet</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/american-gangster.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>3. American Gangster</h1>
                        <p class="slideCaption">
                            Denzel plays the notorious gangster, Frank Lucas, who kills a man who doesn’t pay him the money he owes.  Without hesitation, Lucas kills the man in the stree                             </p>
                        <p class="slideCredit">
                            <a href="http://www.dvdbeaver.com/film2/DVDReviews42/american%20gangster%20blu-ray/HF7Y9005_american_gangster_blu-ray.jpg" target="_blank">DVD Beaver</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/safe-house.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>4. Safe House</h1>
                        <p class="slideCaption">
                            What do you do when you’re a fugitive and a CIA agent is looking after you?  Just follow Denzel’s bad ass steps in this one scene.  After Ryan Reynolds’ character has arrested Denzel’s character, he takes him to an arena where a soccer game is taking place in order to get weapons out of a locker. While in a crowd outside the arena, Denzel manages to trick the stadium security into believing he’s being kidnapped. They not only set him free, but then arrest Ryan Reyonlds. Denzel then effortlessly waltzes right out of the stadium. No sweat for a bad ass.                            </p>
                        <p class="slideCredit">
                            <a href="http://www.hbo.com/movies/safe-house" target="_blank">HBO</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/malcolm-x.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>5. Malcolm X</h1>
                        <p class="slideCaption">
                            Denzel’s portrayal of Malcolm X was the role that most thought would win him an Oscar. In one scene, Malcolm and other members of the Nation of Islam demand the release of one of their fellow Muslims from jail by crowding the street outside of the building. After succeeding in this, Malcolm raises his hand and signals for his men to leave. With flick of his wrist, about one hundred protesters turn in unison and march away, as if a general had commanded them. Even a white cop notices his influence and says, “That’s too much power for a n***er to have.” If Malcolm X wasn’t bad ass enough, Denzel playing him just sweetened the deal.                             </p>
                        <p class="slideCredit">
                            <a href="http://www.popjavascript:void(0);cornreel.com/jpgimg/x%20004.png" target="_blank">Popcorn Reel</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                                                        <div class="slideContainer">
                    <div class="slide">
                      <span class="slideMiddle"></span><img src="http://renegademagsu.com/wp-content/uploads/2014/05/remember-the-titans.png" />
                    </div>
                    <div class="slideInfo">
                        <h1>6. Remember the Titans</h1>
                        <p class="slideCaption">
                            No one can forget Denzel’s role as coach of a newly integrated high school football team in 1970s Virginia. Even though this is one of Denzel’s small bad ass roles, you have to admit, Coach Boone was scary enough to intimate anyone into doing 100 push ups.                            </p>
                        <p class="slideCredit">
                            <a href="http://www.monologuedb.com/wp-content/uploads/2011/02/denzel-washington-coach-herman-boone-remember-the-titans.jpg" target="_blank">MonologueDB</a>                            </p>
                    </div>
                    <!--slideInfo end-->
                    <div class="fix"></div>
                </div>
                <!--slideContainer end-->
                 <!--end if each if-->
                 <!--end each-->
            </div>
            <!--slideshow end-->
            <div class="slideNav">
                <div class="prevSlide">
                    <i class="fa fa-chevron-left fa-2x"></i>
                </div>
                <div class="slideCount"></div>
                <div class="nextSlide">
                    <i class="fa fa-chevron-right fa-2x"></i>

CSS：

body {
     background-color: #000;
     font-family:'Source Sans Pro', Arial;
     font-size: 18px;
 }

b, strong {
  font-weight: bold;
}

 .container {
     width: 960px;
     margin: 0 auto;
 }

 header {
     width: 100%;
     height: 135px;
 }

 .logo {
     width: 260px;
     height: 135px;
     float: left;
 }

 nav {
     width: 685px;
     height: 135px;
     padding-left:15px;
     float: left;
 }

 nav ul li {
     float: left;
     line-height: 135px;
     position: relative;
 }

 nav ul li a {
     font-size: 24px;
     color: white;
     background-color: black;
     font-weight: bold;
     margin-right: 20px;
     text-decoration: none;
     text-transform: uppercase;
     display: block;
 }

 nav ul li a:hover {
     text-decoration: underline;
 }

 nav ul ul {
     width: 200px;
     height: 50px;
     position: absolute;
     top: 85px;
     left: 0;
     display: none;
     z-index: 1000;
 }

 nav ul ul li {
     float: none;
     line-height: 50px;
 }

 nav ul ul li a {
     font-weight: regular;
     font-size: 20px;
 }

 nav ul li:hover ul {
     display: block;
 }

 .search {
     width: 260px;
     height: 135px;
     float: left;
 }

 section {
     width: 640px;
     float: left;
 }

 .post-container {
     width: 100%;
     position: relative;
     margin-bottom: 30px;
 }

 .post-image img {
     max-width: 100%;
     z-index: 1;
 }

 .post-content {
     position: relative;
     left: 30px;
     width: 580px;
     z-index: 2;
 }

 .thumbnail-positioning {
     bottom: 110px;
     margin-bottom: -110px;
 }

 .post-content p {
     line-height: 22px;
     margin-bottom: 15px;
 }

 .post-content img {
     max-width: 100%;
 }
 .post-meta h3 {
     text-transform: uppercase;
     font-size: 12px;
     color: white;
     margin-bottom: 3px;
     text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
 }
 .post-meta a {
     color: white;
     text-decoration: underline;
     font-weight: bold;
 }

 .post {
     background-color: white;
     color: black;
     padding: 15px;
 }

 .post ol {
     list-style-type: none;
     list-style-type: decimal !ie;
     /*IE 7- hack*/
     margin: 0;
     margin-left: 3em;
     padding: 0;
     counter-reset: li-counter;
 }

 .post ol > li {
     position: relative;
     margin-bottom: 20px;
     padding-left: 0.5em;
     min-height: 3em;
     border-left: 2px solid #CCCCCC;
 }

 .post ol > li:before {
     position: absolute;
     top: 0;
     left: -1em;
     width: 0.8em;
     font-size: 3em;
     line-height: 1;
     font-weight: bold;
     text-align: right;
     color: #464646;
     content: counter(li-counter);
     counter-increment: li-counter;
 }

 .post p:last-child {
     margin-bottom: 0 !important;
 }

 .post h1 {
     font-size: 34px;
     text-transform: uppercase;
     font-weight: bold;
     margin-bottom: 7px;
 }

 .post a {
     color: black;
     text-decoration: none;
 }

 .page {
     width: 550px;
     margin: 0 auto;
     background-color: white;
     padding: 15px;
 }

 .page p {
     line-height: 22px;
     margin-bottom: 15px;
 }

 .page h1 {
     font-size: 34px;
     text-transform: uppercase;
     font-weight: bold;
     border-bottom: 1px solid black;
     margin-bottom: 7px;
 }

 .leftimage {
     margin: 0 10px 2px -50px;
     float: left;
 }

 .leftcaption {
     margin: 3px 0 0 80px;
     font-style: italic;
     font-size: 11px;
     width: 220px;
 }

 .leftimage img {
     max-width: 300px;
 }

 .rightimage {
     margin: 0 -50px 2px 10px;
     float: right;
 }

 .rightcaption {
     margin: 3px 80px 0 0;
     font-style: italic;
     font-size: 11px;
     width: 220px;
 }

 .rightimage img {
     max-width: 300px;
 }

 aside {
     width: 290px;
     float: right;
 }

 aside h1 {
     color: white;
     font-size: 28px;
     border-bottom: 1px solid white;
     text-transform: uppercase;
     font-weight: bold;
     margin-bottom: 10px;
 }

 aside .widget {
     margin-bottom: 20px;
 }

 aside ul li {
     margin-bottom: 10px;
 }

 aside ul li a {
     font-size: 19px;
     color: white;
     text-decoration: none;
 }

 aside ul li a:hover {
     font-size: 19px;
     color: black;
     background-color: white;
     text-decoration: none;
 }

input[type=text]{
    width: 100%;
    background-color: white;
    color:#505358;
    font-size: 18px;
}

 footer {
     width: 100%;
 }

 footer .widget {
     width: 300px;
     float: left;
     margin-bottom: 20px;
     padding-right: 20px;
 }

 footer h1 {
     color: white;
     font-size: 28px;
     border-bottom: 1px solid white;
     text-transform: uppercase;
     font-weight: bold;
     margin-bottom: 10px;
 }

 footer ul li a {
     font-size: 19px;
     color: white;
     text-decoration: none;
 }

 footer ul li a:hover {
     font-size: 19px;
     color: black;
     background-color: white;
     text-decoration: none;
 }

 .alignleft {
     float: left;
     margin: 0 10px 2px -45px;
 }

 .alignright {
     float: right;
     margin: 0 -45px 2px 10px;
 }

 .fix {
     clear: both;
 }

/************SLIDESHOW************/

.slideshow {
    background-color: #000;
    width: 100%;
    height: 500px;
    position: relative;
}
.slideContainer {
    background-color: #000;
    padding: 10px;
    width: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
}

.slideshow .slideContainer:not(:first-child) {
    display: none;
}

.slide {
    width: 100%;
    height: 400px;
    text-align: center;
    background-color: #FFF;
}
.slideMiddle {
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}
.slide img {
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}
.slideInfo {
    width: 100%;
    height: 80%;
    padding: 10px;
    color: #fff;
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
}
.slideNav {
    width: 100%;
    padding: 10px;
    background-color: #000;
    color: #fff;
    position:relative;
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
}
.prevSlide {
    width: 33.3%;
    float: left;
}
.nextSlide {
    width: 33.3%;
    float: right;
    text-align: right;
}
.slideCount {
    width: 23.3%;
    text-align: center;
    position:absolute;
    left:40%;
}
.slideCredit {
    width: 100%;
    font-style: italic;
    font-size: 12px;
}

.slideCredit a {
    color: #FFF;
}

的jQuery

$('.slideCount').each(function(){
var text='1/'+$(this).parents('div.post-container').find('.slideContainer').length
$(this).text(text)
})

var maxheight = 0;
$('.slideshow').each(function() {
    $(this).children().each(function(){
        maxheight = ($(this).height() > maxheight ? $(this).height() : maxheight);
        console.log(maxheight);
    })
    $(this).children().height(maxheight);
    console.log('Final:' + maxheight);
    maxheight = 0;
})

$('.nextSlide').show()  
$('.prevSlide').hide()

$('div.nextSlide').click(function (e){
var count=parseInt($(this).siblings('.slideCount').text())
var slideshow=$(this).parents('div.post-container').find('.slideshow')
var slides = $(slideshow).children().length;
if(count===slides){
  e.preventDefault()
    }else{
  count++
  $(this).parents('div.post-container').find('div.slideContainer:first').appendTo(slideshow) 
  $(this).siblings('.slideCount').text(count+'/'+slides)
}
if(count===slides){$(this).hide()}else{$(this).parent().find('div.prevSlide').show()}
});

$('.prevSlide').click(function (e){
var count=parseInt($(this).siblings('.slideCount').text().slice(0,-2))
var slideshow=$(this).parents('div.post-container').find('.slideshow')
var slides = $(slideshow).children().length;
if(count===1){e.preventDefault()}else{
  count--
  $(this).parents('div.post-container').find('div.slideContainer:last').prependTo(slideshow) 
  $(this).siblings('.slideCount').text(count+'/'+slides)
} 
if(count===1){$(this).hide()}else{$(this).parent().find('div.nextSlide').show()} 
});

这是JSFiddle的所有活动部分：http://jsfiddle.net/B4rqz/

Answer 1

尝试使用延迟对象

$（this）.children（）。height（maxheight）可以在每个循环结束之前执行，因为javascript是异步的

Answer 2

当你设定孩子的身高时，你也需要设定父母的身高。

var maxheight = 0;
$('.slideshow').each(function() {
    $(this).children().each(function(){
        maxheight = ($(this).height() > maxheight ? $(this).height() : maxheight);
        console.log(maxheight);
    })
    $(this).height(maxheight).children().height(maxheight);
    console.log('Final:' + maxheight);
    maxheight = 0;
})