JSFiddle - React, Tailwind, and code Playground

HTML

<div class="contain"></div>

CSS

span{border: dashed 1px blue;}

JavaScript

var myArr = [0,1,2,3,4];

var $span= $('<span>SPAN</span>');

for (var i = 0; i < (myArr.length); i++) {
    
    $('.contain').append($span);
    
    alert("Successfully completed loop " + i);
    
}