append as first child code example
Example 1: javascript append how first element
// 2018+ Version
parentElement.prepend(newFirstChild)
Example 2: prepend element jquery
$( ".inner" ).prepend( "<p>Test</p>" );
Example 3: mdn appendchild
// Create a new paragraph element, and append it to the end of the document body
let p = document.createElement("p");
document.body.appendChild(p);
Example 4: how to add first child using js
var eElement; // some E DOM instance
var newFirstElement; //element which should be first in E
eElement.insertBefore(newFirstElement, eElement.firstChild);