How to insert an element after another element in JavaScript without using a library?
//insert new Element after some reference Element
function insertAfter(newElement, referenceElement) {
referenceElement.parentNode.insertBefore(newElement, referenceElement.nextSibling);
}
//example usage
var newElement = document.createElement("div");
newElement.innerHTML = "my New Div Text";
var myCurrentElement= document.getElementById("myElementID");
insertAfter(newElement, myCurrentElement);how to add class to element on mouseclick with js
// element.classList.add("newClass");
// or
// element.className += "newClass";
// Example
document.querySelector("button").onclick = function addNewClass() {
document.querySelector(".elementToChange").classList.add("newClass");
}Copyright © 2021 Codeinu
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