jquery, on click on class, remove "active" class from all other same class elements, on click on other place in page, remove all "active" classes

$(".class").on("click", function(){
  $(".class").removeClass("active");
  $(this).addClass("active");
});
$(document).on("click", function(e){
  if(!$(e.target).closest(".class").length){
    $(".class").removeClass("active");
  }
});