$rootScope.Scope.$watchGroup()

A variant of $watch() where it watches an array of watchExpressions. If any one expression in the collection changes the listener is executed.

The items in the watchExpressions array are observed via standard $watch operation and are examined on every call to $digest() to see if any items changes.
The listener is called whenever any expression in the watchExpressions array changes.

Param	Type	Details
watchExpressions	`Array.<string\|Function(scope)>`	Array of expressions that will be individually watched using $watch()
listener	`function(newValues, oldValues, scope)`	Callback called whenever the return value of any expression in `watchExpressions` changes The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching those of `watchExpression` and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching those of `watchExpression` The `scope` refers to the current scope.

function()

Returns a de-registration function for all listeners.

Links:

doc_AngularJS

2025-01-10 15:47:30

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