how to delete session cookie in javascript code example

Example 1: delete session javascript

// To remove only one session
sessionStorage.removeItem('itemName'); 
// To remove all sessions 
sessionStorage.clear();

Example 2: javascript delete cookie

function deleteCookie(name) {
  document.cookie = name + '=; expires=Thu, 01 Jan 1970 00:00:01 GMT;';
}