AngularJS Scope Methods

$watch: This method is used to watch value changes in scope properties or variables.
$watchGroup: This method is used to watch value in scope array variable.
$watchCollection: This method is used to observe properties on a single object.
$on: This method is used to listens dispatched events of a given type
$emit: This method is used to dispatches an event name upwards and travel up to        $rootScope.scope listeners.
$broadcast: This method is used to dispatches an event name downward to all child scopes notify the registered $rootScope listeners.
$new: This scope object method creates a new child scope.
$digest: This scope method processes all of the watchers of the current scope and its children.
$destroy: This scope method is used to removes the current scope (and all of its children) from the parent scope.
$eval: This scope method is used to executes the expression on the current scope and returns the result.
$apply: This scope method is used to execute an expression in angular from outside of the angular framework.