Localstorage snippet

gistfile1.js

if (typeof(localStorage) == 'undefined' ) {
  alert('Your browser does not support HTML5 localStorage. Try upgrading.');
} else {
  try {
    localStorage.setItem("name", "Hello World!"); //saves to the database, "key", "value"
  } catch (e) {
    if (e == QUOTA_EXCEEDED_ERR) {
      alert('Quota exceeded!'); //data wasn’t successfully saved due to quota exceed so throw an error
    }
  }

  document.write(localStorage.getItem("name")); //Hello World!
  localStorage.removeItem("name"); //deletes the matching item from the database
}