JSFiddle - React, Tailwind, and code Playground
HTML
<div class="map_object">
<span> test1 </span>
<script></script>
</div>
<div class="map_object">
<span> test2 </span>
<script></script>
</div>
<div class="map_object">
<span> test3 </span>
<script></script>
</div>
JavaScript
window.onload=function(){
var span = document.getElementsByTagName("span");
for(var i=0;i<span.length;i++)
{
span[i].nextElementSibling.innerHTML = span[i].innerHTML
}
};