add or remove class javascript code example
Example 1: javascript remoev css class
//remove a css class from an element
document.getElementById("myElementID").classList.remove("class_name");
Example 2: es6 add and remove class
let el = document.getElementById('container');
//remove class
el.classList.remove('first');
//remove class
el.classList.add('first');
Example 3: how to remove an class in javascript
document.getElementsByClassName("legend").style.display="none";