JSFiddle - React, Tailwind, and code Playground

HTML

<div id="elm0" data-color="color" data-size="size" data-more="more">something</div>
<div id="elm1">This element must get elem0 attr</div>

JavaScript

$(function(){
    var src = $('#elm0'),
        dst = $('#elm1'),
        attr = elem[0].attributes;
    
    for(var i = 0, len = attr.length; i < len; i++){
        var current = attr[i];
        dst.attr(current[i].nodeName, current[i].nodeValue);
    }
});