instance method SpahQL#listen
SpahQL#listen(path, callback) → SpahQL
-
path
(String
) – A path relative to the items in this set, if you only want to listen for changes on a particular subkey. -
callback
(Function
) – A function to be called when the data in this SpahQL set is modified. SpahQL#listen(callback) -> SpahQL -
callback
(Function
) – A function to be called when the data in this SpahQL set is modified.
Registers a callback to be triggered when data within this set of results is modified. Note that this method listens for changes on all items in this set:
var db = SpahQL.db(some_data);
// Callback triggered whenever the first item in any array anywhere is modified db.select(“//0”).modified(function() )
// Callback triggered only when a specific array is modified db.select(“//0”).item(0).modified(function() )
Upon modification, the callback will be triggered with arguments:
Returns self.