Jquery - 使用each（）获取类元素的位置 [英] Jquery - using each() to get position of a class element

问题描述

我需要知道猫头鹰项目有效的位置，我知道目前的位置是2.总共有3张照片。

I need to know the position of the "owl-item active", I know that the current position is 2. There are 3 photos in total.

<div style="transform: translate3d(-825px, 0px, 0px); transition: all 0.25s ease 0s; width: 48675px;" class="owl-stage">
    <div style="width: 825px; margin-right: 0px;" class="owl-item">
        <div class="gallery-item" style="background-image: url('/image/144/1.jpg');"></div>
    </div>
    <div style="width: 825px; margin-right: 0px;" class="owl-item active">
        <div class="gallery-item" style="background-image: url('/image/144/2.jpg');"></div>
    </div>
    <div style="width: 825px; margin-right: 0px;" class="owl-item">
        <div class="gallery-item" style="background-image: url('/image/144/3.jpg');"></div>
    </div>
</div>

如何使用Jquery .each（）获取此owl-item active的位置？

How can I get the position of this "owl-item active" using a Jquery .each() ?

我有这段代码，但无法找到代码的方法告诉我这个owl-item active位于第2位。

I've this code, but can't find a way to the code tell me that this "owl-item active" is in the position 2.

$('.owl-stage .owl-item').each(function( index, currentElement ) {
    console.log( index+1 );
    //console.log( $(currentElement).find('div.owl-item.active') ); 
});

有人能给我一些关于如何做到这一点的线索吗？

Can someone give me a clue on how to do this?

推荐答案

您需要使用 hasClass 方法：

You need to use hasClass method:

$('.owl-stage .owl-item').each(function( index, currentElement ) {
   if( $( this ).hasClass( 'active' ) ) { 
     console.log( index+1 );
   }
});

但只需将选择器传递给 index 方法：

But you can use it even easier by just passing selector to index method:

console.log( $('.owl-stage .active').index( '.owl-item' ) + 1 );

$(function() {
  console.log( '.active index is', $('.owl-stage .active').index( '.owl-item' ) + 1 );
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div style="transform: translate3d(-825px, 0px, 0px); transition: all 0.25s ease 0s; width: 48675px;" class="owl-stage">
    <div style="width: 825px; margin-right: 0px;" class="owl-item">
        <div class="gallery-item" style="background-image: url('/image/144/1.jpg');"></div>
    </div>
    <div style="width: 825px; margin-right: 0px;" class="owl-item active">
        <div class="gallery-item" style="background-image: url('/image/144/2.jpg');"></div>
    </div>
    <div style="width: 825px; margin-right: 0px;" class="owl-item">
        <div class="gallery-item" style="background-image: url('/image/144/3.jpg');"></div>
    </div>
</div>

这篇关于Jquery - 使用each（）获取类元素的位置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！