Question

My Case: localStorage with key + value that should be deleted when browser is closed and not single tab.

Please see my code if its proper and what can be improved:

//create localStorage key + value if not exist
if (localStorage) {
  localStorage.myPageDataArr = {
    "name" => "Dan",
    "lastname" => "Bonny"
  };
}

//when browser closed - psedocode
$(window).unload(function() {
  localStorage.myPageDataArr = undefined;
});

Answer 1

should be done like that and not with delete operator:

localStorage.removeItem(key);