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Change id of multiple dynamic fields

I have a form with dynamic fields but I would like the additional fields to have a different ID.

My code works pretty well but as it is a simple copy of HTML code, there is no reference of any ID. I am a totally beginner in Javascript, and I don't know how to achieve that.

 $(".addMore").click(function() { if ($('body').find('.field').length <= 10) { var fieldHTML = '<div class="form-group field">' + $(".fieldCopy").html() + '</div>'; $('body').find('.field:last').after(fieldHTML); } }); // Remove $("body").on("click", ".remove", function() { $(this).parents(".field").remove(); }); 
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <form method="post" action=""> <div class="form-group field"> <div class="input-group"> <input id="name" type="text" name="name[]" class="form-control" /> <input id="email" type="text" name="email[]" class="form-control" /> <div class="input-group-addon"> <a href="javascript:void(0)" class="btn btn-success addMore">Add</a> </div> </div> </div> <input type="submit" name="submit" class="btn btn-primary" value="Submit" /> </form> <!-- copy of input fields group --> <div class="form-group fieldCopy" style="display: none;"> <div class="input-group"> <input id="name" type="text" name="name[]" class="form-control" /> <input id="email" type="text" name="email[]" class="form-control" /> <div class="input-group-addon"> <a href="javascript:void(0)" class="btn btn-danger remove">Remove</a> </div> </div> </div> 

You can set it like this:

var i = 0;
    $(".addMore").click(function() {
      if ($('body').find('.field').length <= 10) {
        var fieldHTML = '<div class="form-group field">' + $(".fieldCopy").html() + '</div>';
        $('body').find('.field:last').after(fieldHTML);
           $('body').find('.field:last').attr("id",i);
        i++
      }
    });

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