Answers for "js how to hide scrollbar and not scrolling"

javascript hide scrollbar

// You can hide the document scrollbar with this...
document.body.style.overflow = 'hidden';
//...and unhide it with this:
document.body.style.overflow = 'visible';

// Or switch between them:
booleanCondition
  ? document.body.style.overflow = 'hidden'
  : document.body.style.overflow = 'visible';

javascript hide scrollbar

function HideScrollbar() {
  var style = document.createElement("style");
  style.innerHTML = `body::-webkit-scrollbar {display: none;}`;
  document.head.appendChild(style);
}