Angular 1 core concept was $scope, and you will not find $scope in angular 2.0. Angular 2 is using . . . . . . . . to detect changes.
A)zone$.js
B)Scope.js
C)zone.js
D)zones.js

Question

Quizplus · Accepted Answer

Angular 2 uses zone.js to detect changes. Zone.js helps in tracking the start and completion of asynchronous operations, making change detection more efficient in Angular applications.

Angular 1 Core Concept Was $Scope, and You Will Not