javascript - why the wrapAll in infinite-scroll, have many divs? -


the last question here: wrap divs 2 different columns

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://unpkg.com/infinite-scroll@3/dist/infinite-scroll.pkgd.min.js"></script>      <script type="text/javascript">     $('.wrapper').each(function() {       $(this).find(".lpost").wrapall('<div class="left_columns"></div>')       $(this).find(".rpost").wrapall('<div class="right_columns"></div>')     })     </script>      <div class="wrapper">       <div class="rpost">-115</div>       <div class="lpost">-91</div>       <div class="lpost">-99</div>       <div class="rpost">-181</div>       <div class="lpost">-19</div>       <div class="rpost">-135</div>       <div class="rpost">-85</div>       <div class="lpost">-39</div>     </div>          <script type="text/javascript">         var $container = $('.wrapper').infinitescroll({             path: '.next-post',             append: '.post',             hidenav: '.pagination',             status: '.page-load-status',         });         $container.on('append.infinitescroll',         function(event, response, path, items) {             $(function() {                 $('.wrapper').each(function() {                   $(this).find(".lpost").wrapall('<div class="left_columns"></div>')                   $(this).find(".rpost").wrapall('<div class="right_columns"></div>')                 })             });         });         </script>

if scroll down 3 pages result:

<div class="wrapper">   <div class="left_columns">     <div class="left_columns">       <div class="left_columns">           <div class="lpost">-91</div>           <div class="lpost">-99</div>           <div class="lpost">-19</div>           <div class="lpost">-39</div>       </div>     </div>   </div> </div>

have many left_columns , right_columns divs how fix this?

you should check if .right_columns or .left_columns exists or not:

$('.wrapper').each(function() {     var lpost = $(this).find(".lpost"),         rpost = $(this).find(".rpost"),         lcol  = $(this).find('.left_columns');      if(lcol.length){          var rcol = $(this).find('.right_columns');         lpost.appendto(lcol);         rpost.appendto(rcol);     }else{         lpost.wrapall('<div class="left_columns"></div>');         rpost.wrapall('<div class="right_columns"></div>');     } })

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