function for create and append new div code example
Example 1: javascript document.createElement add function
var newTH = document.createElement('th');
newTH.innerHTML = 'Hello, World!';
newTH.onclick = function () {
this.parentElement.removeChild(this);
};
var table = document.getElementById('content');
table.appendChild(newTH);
Example 2: add a child html object to another html object in js
//Add child at end of object children list
parent.append(child);
//Add child at start of object children list
parent.insertBefore(child, list.childNodes[0]);