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Prevent insertBefore duplicating content



2019 Community Moderator ElectionjQuery/JavaScript: accessing contents of an iframedisplay none when no images in jqueryHow to merge two arrays in JavaScript and de-duplicate itemsInternet Explorer: overflow and floatGet all unique values in a JavaScript array (remove duplicates)Set div width to sum of its children and its children's width to the sum of their childrenRemove duplicate values from JS arrayHow to define height of a container by an element within that containerDiv width depending on image width that is inside itjQuery prepend hover mouseover swap










1















I want to move the entire content of the .main-section-image before the .main-section .content .title. But when I use my jQuery code, the content of all other divs is duplicated.



How I can use an if condition to prevent duplicated text from adding to the area?






$('.main-section-image').insertBefore('.main-section .content .title');

.duo-left float: left;
.duo-right float: right;
.main-section width: 100%; float: left;
.main-section .content 
	width: 65%;


.main-section .main-section-image 
 width: 35%;

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="main-section">
 <div class="content duo duo-right">
 <div class="title">
 <p><span class="red">TITLE</span> </p>
 </div>
 <div class="description">
 <p>Section description</p>
 </div>
 </div>
 <div class="main-section-image duo-left">
 <img src="https://via.placeholder.com/200x200.png">
 </div>
 <div class="clearfix">&nbsp;</div>
</div>

<div class="main-section">
 <div class="content duo duo-left">
 <div class="title">
 <p><span class="red">TITLE</span> </p>
 </div>
 <div class="description">
 <p>Section description</p>
 </div>
 </div>
 <div class="main-section-image duo-right">
 <img src="https://via.placeholder.com/200x200.png">
 </div>
 <div class="clearfix">&nbsp;</div>
</div>








javascript jquery







share|improve this question




























    1















    I want to move the entire content of the .main-section-image before the .main-section .content .title. But when I use my jQuery code, the content of all other divs is duplicated.



    How I can use an if condition to prevent duplicated text from adding to the area?






    $('.main-section-image').insertBefore('.main-section .content .title');

    .duo-left float: left;
    .duo-right float: right;
    .main-section width: 100%; float: left;
    .main-section .content 
    	width: 65%;


    .main-section .main-section-image 
     width: 35%;

    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <div class="main-section">
     <div class="content duo duo-right">
     <div class="title">
     <p><span class="red">TITLE</span> </p>
     </div>
     <div class="description">
     <p>Section description</p>
     </div>
     </div>
     <div class="main-section-image duo-left">
     <img src="https://via.placeholder.com/200x200.png">
     </div>
     <div class="clearfix">&nbsp;</div>
    </div>

    <div class="main-section">
     <div class="content duo duo-left">
     <div class="title">
     <p><span class="red">TITLE</span> </p>
     </div>
     <div class="description">
     <p>Section description</p>
     </div>
     </div>
     <div class="main-section-image duo-right">
     <img src="https://via.placeholder.com/200x200.png">
     </div>
     <div class="clearfix">&nbsp;</div>
    </div>








    javascript jquery







    share|improve this question


























      1












      1








      1








      I want to move the entire content of the .main-section-image before the .main-section .content .title. But when I use my jQuery code, the content of all other divs is duplicated.



      How I can use an if condition to prevent duplicated text from adding to the area?






      $('.main-section-image').insertBefore('.main-section .content .title');

      .duo-left float: left;
      .duo-right float: right;
      .main-section width: 100%; float: left;
      .main-section .content 
      	width: 65%;


      .main-section .main-section-image 
       width: 35%;

      <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <div class="main-section">
       <div class="content duo duo-right">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-left">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>

      <div class="main-section">
       <div class="content duo duo-left">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-right">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>








      javascript jquery







      share|improve this question
















      I want to move the entire content of the .main-section-image before the .main-section .content .title. But when I use my jQuery code, the content of all other divs is duplicated.



      How I can use an if condition to prevent duplicated text from adding to the area?






      $('.main-section-image').insertBefore('.main-section .content .title');

      .duo-left float: left;
      .duo-right float: right;
      .main-section width: 100%; float: left;
      .main-section .content 
      	width: 65%;


      .main-section .main-section-image 
       width: 35%;

      <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <div class="main-section">
       <div class="content duo duo-right">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-left">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>

      <div class="main-section">
       <div class="content duo duo-left">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-right">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>








      $('.main-section-image').insertBefore('.main-section .content .title');

      .duo-left float: left;
      .duo-right float: right;
      .main-section width: 100%; float: left;
      .main-section .content 
      	width: 65%;


      .main-section .main-section-image 
       width: 35%;

      <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <div class="main-section">
       <div class="content duo duo-right">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-left">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>

      <div class="main-section">
       <div class="content duo duo-left">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-right">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>





      $('.main-section-image').insertBefore('.main-section .content .title');

      .duo-left float: left;
      .duo-right float: right;
      .main-section width: 100%; float: left;
      .main-section .content 
      	width: 65%;


      .main-section .main-section-image 
       width: 35%;

      <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <div class="main-section">
       <div class="content duo duo-right">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-left">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>

      <div class="main-section">
       <div class="content duo duo-left">
       <div class="title">
       <p><span class="red">TITLE</span> </p>
       </div>
       <div class="description">
       <p>Section description</p>
       </div>
       </div>
       <div class="main-section-image duo-right">
       <img src="https://via.placeholder.com/200x200.png">
       </div>
       <div class="clearfix">&nbsp;</div>
      </div>





      javascript jquery




      javascript jquery






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 7 at 12:50









      showdev

      20.1k133352




      20.1k133352










      asked Mar 7 at 12:34









      RobertRobert

      466921




      466921






















          1 Answer
          1






          active

          oldest

          votes


















          1














          You're inserting all .main-section-image elements before all .content .title elements.



          Since you have multiple .main-section elements that each contain their own images and titles, multiple images are inserted before all the titles.



          I suggest using jQuery's each() to make the change within each .main-section separately.

          Below, I'm using jQuery's selector context, which uses find().



          I also add a button and click handler to perform the insert.

          But that's just for demonstration, so feel free to remove that code.






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          Edit



          You asked about how to add a class after the change. You can use jQuery's addClass().

          Since insertBefore returns a jQuery object, you can chain addClass afterwards, like this:



          $image.insertBefore($target).addClass('another-class');


          Here's a demonstration:






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>








          share|improve this answer

























          • Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

            – Robert
            Mar 7 at 12:52











          • Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

            – showdev
            Mar 7 at 12:55











          • I got it thank you very much, you save my day

            – Robert
            Mar 7 at 12:55











          • one small thing, we can do something to check if that .main-section div exist in page?

            – Robert
            Mar 7 at 12:58











          • If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

            – showdev
            Mar 7 at 13:01










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          1 Answer
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          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          You're inserting all .main-section-image elements before all .content .title elements.



          Since you have multiple .main-section elements that each contain their own images and titles, multiple images are inserted before all the titles.



          I suggest using jQuery's each() to make the change within each .main-section separately.

          Below, I'm using jQuery's selector context, which uses find().



          I also add a button and click handler to perform the insert.

          But that's just for demonstration, so feel free to remove that code.






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          Edit



          You asked about how to add a class after the change. You can use jQuery's addClass().

          Since insertBefore returns a jQuery object, you can chain addClass afterwards, like this:



          $image.insertBefore($target).addClass('another-class');


          Here's a demonstration:






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>








          share|improve this answer

























          • Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

            – Robert
            Mar 7 at 12:52











          • Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

            – showdev
            Mar 7 at 12:55











          • I got it thank you very much, you save my day

            – Robert
            Mar 7 at 12:55











          • one small thing, we can do something to check if that .main-section div exist in page?

            – Robert
            Mar 7 at 12:58











          • If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

            – showdev
            Mar 7 at 13:01















          1














          You're inserting all .main-section-image elements before all .content .title elements.



          Since you have multiple .main-section elements that each contain their own images and titles, multiple images are inserted before all the titles.



          I suggest using jQuery's each() to make the change within each .main-section separately.

          Below, I'm using jQuery's selector context, which uses find().



          I also add a button and click handler to perform the insert.

          But that's just for demonstration, so feel free to remove that code.






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          Edit



          You asked about how to add a class after the change. You can use jQuery's addClass().

          Since insertBefore returns a jQuery object, you can chain addClass afterwards, like this:



          $image.insertBefore($target).addClass('another-class');


          Here's a demonstration:






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>








          share|improve this answer

























          • Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

            – Robert
            Mar 7 at 12:52











          • Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

            – showdev
            Mar 7 at 12:55











          • I got it thank you very much, you save my day

            – Robert
            Mar 7 at 12:55











          • one small thing, we can do something to check if that .main-section div exist in page?

            – Robert
            Mar 7 at 12:58











          • If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

            – showdev
            Mar 7 at 13:01













          1












          1








          1







          You're inserting all .main-section-image elements before all .content .title elements.



          Since you have multiple .main-section elements that each contain their own images and titles, multiple images are inserted before all the titles.



          I suggest using jQuery's each() to make the change within each .main-section separately.

          Below, I'm using jQuery's selector context, which uses find().



          I also add a button and click handler to perform the insert.

          But that's just for demonstration, so feel free to remove that code.






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          Edit



          You asked about how to add a class after the change. You can use jQuery's addClass().

          Since insertBefore returns a jQuery object, you can chain addClass afterwards, like this:



          $image.insertBefore($target).addClass('another-class');


          Here's a demonstration:






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>








          share|improve this answer















          You're inserting all .main-section-image elements before all .content .title elements.



          Since you have multiple .main-section elements that each contain their own images and titles, multiple images are inserted before all the titles.



          I suggest using jQuery's each() to make the change within each .main-section separately.

          Below, I'm using jQuery's selector context, which uses find().



          I also add a button and click handler to perform the insert.

          But that's just for demonstration, so feel free to remove that code.






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          Edit



          You asked about how to add a class after the change. You can use jQuery's addClass().

          Since insertBefore returns a jQuery object, you can chain addClass afterwards, like this:



          $image.insertBefore($target).addClass('another-class');


          Here's a demonstration:






          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>








          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target);
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>





          $('#go').on('click', function() 

           $('.main-section').each(function() 
           var $image = $('.main-section-image', this);
           var $target = $('.content .title', this);
           $image.insertBefore($target).addClass('another-class');
           );

          );

          .duo-left 
           float: left;


          .duo-right 
           float: right;


          .main-section 
           width: 100%;
           float: left;


          .main-section .content 
           width: 65%;


          .main-section .main-section-image 
           width: 35%;


          .another-class 
           outline: 1px solid red;

          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

          <button id="go">Make The Change</button>
          <hr>

          <div class="main-section">
           <div class="content duo duo-right">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-left">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>

          <div class="main-section">
           <div class="content duo duo-left">
           <div class="title">
           <p><span class="red">TITLE</span> </p>
           </div>
           <div class="description">
           <p>Section description</p>
           </div>
           </div>
           <div class="main-section-image duo-right">
           <img src="https://via.placeholder.com/100x50.png">
           </div>
           <div class="clearfix">&nbsp;</div>
          </div>






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Mar 7 at 13:20

























          answered Mar 7 at 12:47









          showdevshowdev

          20.1k133352




          20.1k133352












          • Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

            – Robert
            Mar 7 at 12:52











          • Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

            – showdev
            Mar 7 at 12:55











          • I got it thank you very much, you save my day

            – Robert
            Mar 7 at 12:55











          • one small thing, we can do something to check if that .main-section div exist in page?

            – Robert
            Mar 7 at 12:58











          • If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

            – showdev
            Mar 7 at 13:01

















          • Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

            – Robert
            Mar 7 at 12:52











          • Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

            – showdev
            Mar 7 at 12:55











          • I got it thank you very much, you save my day

            – Robert
            Mar 7 at 12:55











          • one small thing, we can do something to check if that .main-section div exist in page?

            – Robert
            Mar 7 at 12:58











          • If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

            – showdev
            Mar 7 at 13:01
















          Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

          – Robert
          Mar 7 at 12:52





          Thank you so much for your answer, can you tell me please how I can use the each() function, sorry but I'm not so good in jquery :)

          – Robert
          Mar 7 at 12:52













          Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

          – showdev
          Mar 7 at 12:55





          Please see my example above. jQuery's each() iterates through a set of selected elements. So you can perform your insertBefore on each .main-section separately.

          – showdev
          Mar 7 at 12:55













          I got it thank you very much, you save my day

          – Robert
          Mar 7 at 12:55





          I got it thank you very much, you save my day

          – Robert
          Mar 7 at 12:55













          one small thing, we can do something to check if that .main-section div exist in page?

          – Robert
          Mar 7 at 12:58





          one small thing, we can do something to check if that .main-section div exist in page?

          – Robert
          Mar 7 at 12:58













          If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

          – showdev
          Mar 7 at 13:01





          If there is no .main-section, the code won't do anything. The selection will be empty and the each() function won't fire. But if you really want to check for main sections, you can use the length property like this: if ($('.main-section').length>0) ... .

          – showdev
          Mar 7 at 13:01



















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