The removeItem()
method of the Storage
interface, when passed a key name, will remove that key from the storage if it exists. If there is no item associated with the given key, this method will do nothing.
storage.removeItem(keyName);
DOMString
containing the name of the key you want to remove.Void.
The following function creates three data items inside local storage, then removes the image
data item.
function populateStorage() { localStorage.setItem('bgcolor', 'red'); localStorage.setItem('font', 'Helvetica'); localStorage.setItem('image', 'myCat.png'); localStorage.removeItem('image'); }
Note: To see this used within a real world example, see our Web Storage Demo.
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'Storage.removeItem' 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.
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https://developer.mozilla.org/en-US/docs/Web/API/Storage/removeItem