GM.deleteValue: Difference between revisions
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This [[API_reference|API]] method deletes an existing preference set by [[GM_setValue]]. | This [[API_reference|API]] method deletes an existing preference set by [[GM_setValue]]. | ||
Values are deleted from the [http://developer.mozilla.org/en/docs/Code_snippets:Preferences Firefox preferences] back end and can be manually viewed by typing [[mozillazine:About:config|about:config]] in the address bar and searching for the preference name "<code>greasemonkey.scriptvals.[[ | Values are deleted from the [http://developer.mozilla.org/en/docs/Code_snippets:Preferences Firefox preferences] back end and can be manually viewed by typing [[mozillazine:About:config|about:config]] in the address bar and searching for the preference name "<code>greasemonkey.scriptvals.[[Metadata Block#.40namespace|namespace]]/[[Metadata Block#.40name|name]].foo</code>". | ||
Revision as of 22:18, 3 February 2010
Description
This API method deletes an existing preference set by GM_setValue.
Values are deleted from the Firefox preferences back end and can be manually viewed by typing about:config in the address bar and searching for the preference name "greasemonkey.scriptvals.namespace/name.foo".
Syntax
GM_deleteValue( name )
- Value: Function
- Returns: undefined
- Compatibility: Greasemonkey 0.8.1+
Parameters Properties name
- All properties are optional except name.
Properties
name
- Value: String
- Usage:
name = "PropertyName";
- Property name to delete.
Examples
GM_deleteValue("foo");
See Also
Notes
An issue that some may encounter on some platforms is that the values appear to not be deleted or set. This is usually due to a refreshing issue in the browser. If about:config is refreshed in the window/tab this should resolve any questions about stability of setting and deleting system preferences.
