Dark-Mode-in-HTML-using-javascript & Store-data-in-localstorage-using-js-and-Ionic-Framework-4.0

Note : - index.html(Dark Mode using Js in html) & the Folder Contain Store data in localstorage using js and Ionic Framework 4.0

The localStorage and sessionStorage properties allow to save key/value pairs in a web browser.

• The localStorage object stores data with no expiration date. The data will not be deleted when the browser is closed, and will be available the next day, week, or year.

- The localStorage property is read-only

In web Storage There are Main Five Method

• key()
• getitem()
• setitem()
• removeitem()
• clear()

Definition

All the method belongs to the Storage Object, which can be either a localStorage object or a sessionStorrage object.

1.key()

==> The key() method returns name of the key with the specified index.

Example

Get the name of the first local storage item: var x = localStorage.key(1);

2.getitem()

==> The getItem() method returns value of the specified Storage Object item. Syntax: localStorage.getItem(keyname)

Example

Get the value of the specified local storage item: var x = localStorage.getItem("mytime");

3.setitem()

==>The setItem() method sets the value of the specified Storage Object item. Syntax: localStorage.setItem(keyname, value)

Example

Set the value of the specified local storage item: localStorage.setItem("mytime", Date.now());

4.removeitem()

==>The removeItem() method removes the specified Storage Object item. Syntax:localStorage.removeItem("mytime");

Example

Remove the the specified local storage item: localStorage.removeItem("mytime");

5.clear()

==> The clear() method removes all the Storage Object item for this domain. Syntax: localStorage.clear()

Example

Remove all local storage items: localStorage.clear();