how to redirect page in javascript with data code example

Example 1: javascript redirect with extra url arguments

if (window.location.search === '') {
  window.location = window.location.origin + '?arg=1'
} else {
  window.location = window.location.origin + window.location.search + '&arg=1'
}

Example 2: redirect with data jquery

$.redirect('demo.php', {'arg1': 'value1', 'arg2': 'value2'});