Angular: Interview Questions & Fundamentals

You’ve been dreaming about making your way in the world of Angular development, and you are ready to start interviewing. But what happens when they ask questions that don’t seem right for an interviewee? You’re not alone!

You’ll be asked to solve a series of coding problems, but don’t freak out! I can teach you how. You have an opportunity for self-learning and discovery with my list of programming questions that will give you the skills necessary to ace your interview in no time at all.


1. Why were new client-side frameworks like Angular implemented?


Web developers used VanillaJS and jQuery to develop dynamic websites back in the day, but as their logic grew more complex they found that it was too tedious to maintain. For apps with complicated logics, there’s no separation of concern for the app – so the code becomes messy quickly. Also, while JS is great at handling data between views, jQuery doesn’t offer much help either way when it comes across a new view on top of an existing one like this!


2. Why use Angular?


Angular is a powerful, popular framework for developing web apps. Angular supports two-way data binding and follows MVC pattern architecture while supporting static templates and angular templating so that you can add custom directives when needed. It also allows client/server communication to facilitate strong features like event handlers, animations, as well as RESTfull service integration with validations, support making it the perfect choice!


3. Where do you use Angular


Angular is a full-fledged web framework that provides ready-to-use modules simplifying the development of Single Page Applications. Angular has a set of features like built-in data streaming and type safety, which make it an excellent solution for any organization looking to develop interactive mobile applications with ease.


4. How do you think are AngularJS and Angular different?


Angular is a revolutionary, component-based framework in which an application is made up of individual components that allow for ultimate customization and scalability. It was built with the intention to maximize SEO-friendly production by utilizing both JavaScript as well as TypeScript. Unlike AngularJS which uses controllers, this new version utilizes service/controller concepts when developing applications for mobile platforms like Android or iOS devices while still catering to those who prefer traditional desktop browsers too!


5. How does Angular work?


Angular apps are complex, but this file contains all the information needed to get started. The builder looks at it first and finds the entry point of your app so you can get up and running fast!


6. What are templates in Angular?


Templates in Angular are written with HTML that contains special elements and attributes. These templates can be combined with information coming from the model or controller, which is then rendered to provide an interactive view of your program for users.


7. What are the major components of Angular?


Angular is a powerful JavaScript framework that has control over the HTML view. It’s composed of basic building blocks like components, directives, and services to make logical pieces in an application that perform single tasks each called modules from templates to add data information on how it should be rendered as views using metadata for customization purposes.


8. What is the function of scopes in Angular?


Angular’s scope is like a table of contents for your application. It watches over expressions and propagates events to create the DOM structure within it, similar to how tables are structured in a book. Angular scopes can be arranged hierarchically into different execution contexts that mimic the hierarchical organization of data on pages or screens by mimicking what would occur if you opened up multiple copies of an HTML document.


9. What do you mean by data binding?


Data binding is a crucial part of Angular, and it makes building interactive apps much easier. With data binding in Angular, you can use string interpolation to display text within your HTML tags; property binding will allow us easily set the value of an element’s variable using jQuery selectors through angular expressions or attribute directives; event bindings enable listeners for DOM events that occur on certain elements like click buttons without having to worry about attaching them directly with JavaScript code. Finally, two-way data binding allows changes made from either side (the view vs component) to be automatically propagated back and forth so both are always up-to-date!


10. What do you need the filter in Angular for?


Filters can be used for a variety of purposes. They are often applied in Angular templates, directives, controllers or services to format the value and display it accordingly. You may also create your own custom filters by using them as criteria that data must fulfill before being displayed on-screen through an expression with pipes | after them followed by what they filter against (e.g., {{ ‘b’|upper}} would give you “B”).


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