Storage.clear()

The clear() method of the Storage interface, when invoked, clears all stored keys.

Syntax

storage.clear();

Return value

undefined.

Examples

The following function creates three data entries in local storage, then deletes them using clear().

function populateStorage() {
  localStorage.setItem('bgcolor', 'red');
  localStorage.setItem('font', 'Helvetica');
  localStorage.setItem('image', 'miGato.png');
  localStorage.clear();
}

Note: For a real world example, see our Web Storage Demo.

Specifications

Specification	Status	Comment
WHATWG HTML Living Standard The definition of 'Storage.clear' in that specification.	Living Standard

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
localStorage	4	(Yes)	3.5	8	10.50	4
sessionStorage	5	?	2	8	10.50	4

Feature	Android	Edge	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Basic support	2.1	(Yes)	?	8	11	iOS 3.2

All browsers have varying capacity levels for both localStorage and sessionStorage. Here is a detailed rundown of all the storage capacities for various browsers.

Note: since iOS 5.1, Safari Mobile stores localStorage data in the cache folder, which is subject to occasional clean up, at the behest of the OS, typically if space is short.

Syntax

Return value

Examples

Specifications

Browser compatibility

See also

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