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Labs/JS Modules: Difference between revisions
document the resetBranch method
(document the observe/ignore API of the Preferences module) |
(document the resetBranch method) |
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| Line 210: | Line 210: | ||
let hasFoo = Preferences.has("extensions.test.foo"); | let hasFoo = Preferences.has("extensions.test.foo"); | ||
// hasFoo == true, if the pref has a default value | // hasFoo == true, if the pref has a default value | ||
To reset an entire branch of preferences, call <code>resetBranch</code>: | |||
Preferences.resetBranch("extensions.test."); | |||
// Any pref starting with "extensions.test." is now reset. | |||
=== Locking and Unlocking === | === Locking and Unlocking === | ||