JSFiddle - React, Tailwind, and code Playground
HTML
<div class = "Input">
<textarea cols="10" row="10" name="add" style="resize:none" id ="text0"> </textarea>
<span class="Delete" style="visibility:hidden"> Del </span>
</div>
<button class="AddText">addtext</button>
JavaScript
var count=0;
$('.AddText').on('click',function(e){
$('.Input:last').after($('.Input:first').clone());
$('.Input:last textarea').attr('id','text'+((count)+1));
count=count+1;
});