Practicing advanced Angular interview questions for experienced developers can help you nail your upcoming technical interview. You must carefully frame your answers to the interview questions and prove your expertise in creating seamless user experiences and interfaces using Angular.
Top FAANG+ companies are keen on hiring software developers who know various in-demand frameworks, including Angular. Your marketability hinges on ensuring you master the programming and developing skills related to Angular frameworks.
In this article, we will explain what is Angular and its various versions. We also present some advanced Angular interview questions for experienced developers. In addition, we also shed some light on the commonly asked advanced Angular interview questions for senior developers. Further, we also present some Angular scenario-based interview questions and answers.
According to Statista, Angular is one of the most used web frameworks among developers globally, with a 17.46% share of respondents.
Angular is a popular TypeScript-based web application framework introduced by Google. It is an open-source front-end JavaScript framework. It is ideal for developing scalable, enterprise web applications with reusable code. Here’s a list of the different versions and their release dates:
Note: Click on the version to access the most anticipated interview questions for the same.
If you are an experienced web developer, your answers to the advanced interview questions should be articulated and meaningful. It is of great help to know what interview questions you could expect at your upcoming job interview as you can prepare strategically for them.
You can boost your interview preparation by going through the following Angular interview questions and answers for experienced.
Answer this advanced Angular interview questions for experienced developers by stating that the FormBuilder provides a syntactic sugar that speeds up FormControl, FormGroup, and FormArray objects’ creation. It shortens creating instances and reduces the requirement of boilerplate code to build complex forms. Moreover, it also provides easy-to-use methods for control generation.
You can take the following steps to use the FormBuilder service:
Answer this advanced Angular interview questions for experienced developers by stating the following:
You can use the following table to answer this advanced Angular interview questions for experienced developers.
| Observables | Promises |
| They handle multiple asynchronous events over a period of time | They deal with a single asynchronous event at a time |
| They are lazy, i.e., they are not executed until we use the subscribe() method | They are not lazy, i.e., they are executed immediately after creation |
| Cancellable subscriptions using the unsubscribe() method | Promises are not cancellable |
| They deliver errors to the subscribers | They push the errors to child promises |
| Observables provide operations such as reduce, filter, retryWhen | They do not provide operations |
Answer this advanced Angular interview questions for experienced developers by stating that the Angular applications need to be compiled as every application has components and templates that are incomprehensible to the browser. So, it is essential to compile them before running them inside the browser.
The two types of compilations are as follows:
You can answer this advanced Angular interview questions for experienced developers by highlighting the following advantages of using AoT compilation:
Dependency injection is one of the primary Angular concepts. It is an application design pattern. Dependencies are services that have the functionality required by various components in an application. Angular provides a seamless mechanism for making dependencies that are injectable across the various components of an application.
Angular CLI stands for Angular command-line interface. It lets you initialize, develop, scaffold, and maintain web applications directly from a command shell. You can also use CLI to create components, services, pipes, and directives. It assists in building, testing, and serving, thus making the Angular development workflow quicker and much easier.
HttpClient is a popular Angular module. You can use it for communicating with a backend service through the HTTP protocol. Although promises are useful, they lack certain functionalities that observables offer. The use of HttpClient in Angular returns the data as an observable, thus allowing us to subscribe, unsubscribe, and perform operations.
Using the HttpClient module, you can communicate with a backend service and fetch data. Multitasking allows you to broadcast this fetched data to multiple subscribers in one execution. It is beneficial when we have multiple application parts waiting for some data. You require an RxJS subject to use the multicasting feature.
You will have to include the module: ngCookies angular-cookies.js in Angular for using cookies.
Recommended Reading:Â Angular Interview Questions You Must Prepare for in 2023
You must prepare the latest Angular interview questions and answers for experienced developers. Here is a list of some interview questions for the latest versions of Angular.
This completes the list of Angular interview questions and answers for technical interview preparation.
The following are some scenario-based interview questions that aim at assessing your technical knowledge as well as problem-solving abilities. Essentially, these questions help hiring managers determine if you are the right fit for the company.
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Performance can be optimized using Angular features like lazy loading, change detection strategy optimization, and AOT compilation to minimize load time.
Pipes in Angular are used to transform data in templates. They can format data, such as currency or dates, or apply custom transformations using custom pipes.
Routing guards in Angular control the navigation to and from routes by implementing logic that allows or prevents users from accessing specific parts of the application.
NgModules in Angular organizes an application into cohesive blocks of functionality, grouping related code and helping to manage dependencies efficiently.
Custom directives are user-defined Angular directives that manipulate DOM elements or their behavior. They are used to extend the capabilities of HTML.
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