grouping - Using jQuery to group varying number of divs wtih same class until "last" class -


i've seen other related questions not quite mine.

i have blocks of code varying number of rows , want group rows, including "last" div:

<div class="row"></div> <div class="row"></div> <div class="last"></div> <br> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="last"></div> <br> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="last"></div>

i want:

<div class="wrapper"> <div class="row"></div> <div class="row"></div> <div class="last"></div> </div> <br> <div class="wrapper"> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="last"></div> </div> <br> <div class="wrapper"> <div class="row"></div> <div class="row"></div> <div class="row"></div> <div class="last"></div> </div>

i've tried various find, addbefore, wrapall variations can't it.

i've tried variations of:

$(this).find(".row, .last").wrapall('<div class="wrapper"></div>');

we can acheive combining prevall , wrapall. below ocde

$("div.last").each(function() {   $(this).prevall(".row").addback().wrapall("<div class='wrapper' />");  });

demo : https://jsfiddle.net/wx8074qn/3/


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