我有这个jquery代码，它会将图像附加到div容器中。如果列达到12，我只想添加div类行。
任何人都可以给我一个想法。谢谢你提前。
for (var i = 0, j = result.images.length; i < j; i++){
$("#imageContent").append("<div class='col-md-3'><img src='storage/uploaded/" + result.images[i].name + "' class='img-responsive img-thumbnail'></div>");
}
这里是我的div
<div class="container" id="imageContent" style="display: block;">
</div>
这是我当前的输出。
<div class="container" id="imageContent" style="display: block;">
<div class="col-md-3">
<img src="storage/uploaded/attl1.jpg" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/attl2.jpg" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/May 11, 2017.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/8.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/logo.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/a2la_logo.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/attl1.jpg" class="img-responsive">
</div>
</div>
但是如果列达到12，我想添加Div类行 预期产出
<div class="container" id="imageContent" style="display: block;">
<div class="row">
<div class="col-md-3">
<img src="storage/uploaded/attl1.jpg" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/attl2.jpg" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/May 11, 2017.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/8.png" class="img-responsive">
</div>
</div>
<div class="row">
<div class="col-md-3">
<img src="storage/uploaded/logo.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/a2la_logo.png" class="img-responsive">
</div>
<div class="col-md-3">
<img src="storage/uploaded/attl1.jpg" class="img-responsive">
</div>
</div>
</div>
答案 0 :(得分：0)
你需要使用另一个循环，包装你当前的循环，制作一个类似于paginator的＆＃34;＆＃34;行为。第一个循环将计算您需要的行数（图像数除以4，因为每行有4列），内部循环将迭代4次以填充该行。
for (index = 0 ; index < images.length / 4 ; index++) {
var row = document.createElement('div');
row.className="row";
for (j = index * 4 ; j < (index * 4) + 4 ; j++) {
var col = document.createElement('div');
$(col).addClass("col-md-4");
$(col).html('<img src="' + images[j] + '"/>');
$(row).append(col);
}
$('body').append(row);
}
答案 1 :(得分：0)
您应该创建一个函数，用于计算容器最后一行的col-md-3中有多少last-child个类。
示例：$('.container .row:last-child .col-md-4').length;
如果col-md-3超过4个，请创建.row元素并调用此函数
否则，在最后一行子项中添加$("#imageContent").append("<div class='col-md-3'>...");： - ）
答案 2 :(得分：0)
你可以这样使用
for (var i = 0, j = result.images.length; i < j; i++){
if(i==0 || i%4 == 0)
{
var appendEl = $("<div class='row'></div>").appendTo("#imageContent");
}
$("<div class='col-md-3'><img src='storage/uploaded/" + result.images[i].name + "' class='img-responsive img-thumbnail'></div>").appendTo(appendEl);
}
检查js fiddle https://jsfiddle.net/9Lrg2ecq/
更新：请检查屏幕截图https://ibb.co/fzcR6Q
答案 3 :(得分：0)
您可以使用jQuery的wrapAll（）函数实现此目的。 http://api.jquery.com/wrapall/
我无法对此进行测试，但您的代码应该是这样的：
for (var i = 0, j = result.images.length; i < j; i++) {
if (i % 4 == 0) {
$("#imageContent").append("<div class='col-md-3'><img src='storage/uploaded/" + result.images[i].name + "' class='img-responsive img-thumbnail'></div>");
$(".col-md-3").wrapAll("<div class='row' />");
}
else {
$("#imageContent").append("<div class='col-md-3'><img src='storage/uploaded/" + result.images[i].name + "' class='img-responsive img-thumbnail'></div>");
}
}
答案 4 :(得分：0)
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
<p>Resize the browser window to see the effect.</p>
<div id="new_row">
<div class="row">
<div class="col-md-3 col-sm-3 col-xs-3" style="background-color:yellow;">
Lorem ipsum dolor sit amet
</div>
<div class="col-md-3 col-sm-3 col-xs-3" style="background-color:green;">
Lorem ipsum dolor sit amet
</div>
<div class="col-md-3 col-sm-3 col-xs-3" style="background-color:orange;">
Lorem ipsum dolor sit amet
</div>
<div class="col-md-3 col-sm-3 col-xs-3" style="background-color:red;">
Lorem ipsum dolor sit amet
</div>
</div>
</div>
</div>
<script>
$( document ).ready(function() {
for (var i = 0, j = 10; i < j; i++){
if(i==0 || i%4 == 0)
{
var appendEl = $("<div class='row'></div>").appendTo("#new_row");
}
$("</div><div class='col-md-3 col-sm-3 col-xs-3'><img src='storage/uploaded/" + i + "' class='img-responsive img-thumbnail'></div>").appendTo(appendEl);
}
});
</script>
</body>
</html>
答案 5 :(得分：0)
<div class="row">
<?php $counter =0;
$paged = ( get_query_var( 'paged' ) ) ? get_query_var( 'paged' ) : 1;
$args = array(
'posts_per_page' => 4,
'paged' => $paged
);
$custom_query = new WP_Query( $args );
while($custom_query->have_posts()) :
$custom_query->the_post();
?>
<?php
if ( has_post_thumbnail()) {
$post_image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'large');
}
?>
<div class="col-md-4 col-sm-4">
<div class="latest-news">
<a href="<?php the_permalink(); ?>"><img src="<?php echo $post_image[0];?>" /></a>
<h4><?php echo get_the_date(); ?></h4>
<h3><?php the_title(); ?></h3>
<h5>
<?php $content= get_the_content();
echo $contentCut = substr($content, 0, 100).'...';
?>
</h5>
<ul>
<li>
<a href="#">By
<span><?php echo get_the_author(); ?></span> |</a>
</li>
<li>
<a href="#">comment
<span><?php echo get_comments_number(); ?></span> |</a>
</li>
<li>
<a href="#">Likes
<span><?php if (function_exists('wp_ulike_get_post_likes')){
$count= wp_ulike_get_post_likes(get_the_ID());
if($count > 0)
{
echo $count;
}
else
{
echo '0';
}
}
?>
</span>
</a>
</li>
</ul>
</div>
</div>
<?php
$counter++;
if($counter%3==0)
echo '</div><div class="row">';
endwhile;
?>
</div>