JAVASCRIPT

get element class javascript

//YOU NEED TO DO A LOOP OF THE ELEMENTS
var elements = document.getElementsByClassName('editp');
for(var i=0; i<elements.length; i++) { 
  elements[i].style.display='none';
}

javascript get class name

 document.getElementById("myDIV").className = "mystyle"; 

js get class property

let element = document.querySelector('.preset');
let style = getComputedStyle(element);
let bg = style.backgroundColor;

how to get class name of element in javascript

var spans = document.getElementsByTagName("span");
for (var i = 0; i < spans.length; i++) {
    if (spans[i].className == 'xyz') {
        spans[i].style.backgroundColor = '#000';
    }
}