Discuss the use of the controllerAs syntax in AngularJS.

Instruction: Explain the benefits and usage of the 'controllerAs' syntax in AngularJS controllers.

Context: This question evaluates the candidate's familiarity with modern AngularJS practices, specifically the 'controllerAs' syntax that encourages a more readable and maintainable codebase.

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controllerAs exposes a controller instance under a named property on the scope, allowing templates to use expressions such as vm.name. It improves clarity about which object owns a property; it does not remove scopes or digest-based change detection from AngularJS.

This complete module defines a controller whose callback keeps an explicit reference to its instance:...

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