document.addEventListener("DOMContentLoaded", () => { // Get all "navbar-burger" elements const $navbarBurgers = Array.prototype.slice.call(document.querySelectorAll(".navbar-burger"), 0) // Add a click event on each of them $navbarBurgers.forEach(el => { el.addEventListener("click", () => { // Get the target from the "data-target" attribute const target = el.dataset.target const $target = document.getElementById(target) // Toggle the "is-active" class on both the "navbar-burger" and the "navbar-menu" el.classList.toggle("is-active") $target.classList.toggle("is-active") }) }) })