Angular 2 Interview Questions and Answers

AngularJS (commonly referred to as “Angular.js” or “AngularJS 1.X”) is a JavaScript-based open-source front-end web application framework mainly maintained by Google and by a community of individuals and corporations to address many of the challenges encountered in developing single-page applications.

Angular (“Angular 2+” or “Angular 2”) is a Typescript-based open-source front-end web application platform led by the Angular Team at Google and by a community of individuals and corporations. Angular is a complete rewrite from the same team that built AngularJS.

Angular 2 was released in late 2016 and brought Angular into the modern web with its desktop and mobile applications.

Angular 4 is backward compatible with Angular 2. Angular 4 is a JavaScript framework for building web applications and apps in JavaScript, html, and TypeScript, which is a superset of JavaScript. Angular provides built-in features for animation, http service, and materials which in turn has features such as auto-complete, navigation, toolbar, menus, etc. The code is written in TypeScript, which compiles to JavaScript and displays the same in the browser. The final version was released on March 23, 2017.

Angular 5 was released on November 1, 2017. It include support for progressive web apps, a build optimizer and improvements related to Material Design.

Angular 6 release will be pushed back to March or April 2018, with Angular 7 showing up in September or October 2018. Each version is expected to be backward-compatible with the prior release. Google pledged to do twice-a-year upgrades.

Angular JS:

Angular 2 or Angular:


Angular 5:


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