In these examples we see how easy it is to display, hide or use the toggle without jQuery.
Hide an item
// jQuery
$("#myElm").hide();
// Pure javascript
document.getElementById("myElm").style.display = "none";
Show an item
// jQuery
$("#myElm").show();
// Pure javascript
document.getElementById("myElm").style.display = "";
Toggle
// jQuery
$("#myElm").toggle();
// Pure javascript
var my_elm = document.getElementById("myElm")
my_elm.style.display = (my_elm.style.display == "none" ? "" : "none");