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About the test:

The Angular TypeScript test uses scenario-based multiple-choice questions to evaluate a candidate's skills related to Angular fundamentals, TypeScript syntax and concepts, components and templates, reactive forms and validation, observables and RxJS, routing and navigation, and integrating with RESTful web services. The test aims to assess the candidate's proficiency in Angular and TypeScript and their ability to build robust and scalable web applications. The test also includes a coding question to test hands-on programming skills.

Covered skills:

  • Fundamentals of TypeScript and HTML/ CSS
  • Core Angular modules
  • Data binding and event handling
  • Performance improvements with lazy loading
  • Fundamentals of Angular
  • Routing and navigation
  • Reactive extensions and observables
  • JavaScript Programming

9 reasons why
9 reasons why

Adaface Angular and TypeScript Test is the most accurate way to shortlist Angular Developers



Reason #1

Tests for on-the-job skills

The Angular and TypeScript Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Understanding of TypeScript syntax and features
  • Proficiency in HTML and CSS
  • Knowledge of Angular framework and its core modules
  • Experience with routing and navigation in Angular
  • Understanding of data binding and event handling in Angular
  • Familiarity with Reactive extensions and observables in Angular
  • Ability to implement performance improvements using lazy loading
  • Proficient in JavaScript programming and its concepts
  • Experience in exception handling and error management
  • Understanding of ES6 features in JavaScript
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this Angular & TypeScript Online Test will be non-googleable.

🧐 Question

Medium

Marker ink component
Solve
Consider the following component, which can be used to model a marker and the ink it writes.
 image
Which statements about the given component are true?
A: The 'marker' parameter of the @Input('marker') declaration does not alter the interface of the component.
B: Component, Input and Output are all required imports for this component.
C: Both marker and ink inputs must be provided when including the MarkerInk component in a template.
D: When included in a components template, the MarkerInk component creates a span containing the interpolated marker's name and a button bound to writeInk().
E: The MarkerInk component can be included in another template using the <MarkerInk> tag.

Easy

Markup DOM
Templates
Solve
Review the following Angular components:
 image
What will be rendered to the DOM based on the following markup usage?
 image
 image

Medium

Providing Dependency
Dependency Injection
Solve
Review the following classes that need to act as dependencies in an Angular project:
 image
Service X is provided to SampleComponent as shown here:
 image
Service Y is provided to SampleModule as shown here:
 image
Service Z is provided to AnotherSampleModule as shown here:
 image
Pick the correct statements:

A: Service X is registered with specific ngComponent. Any new instance of that component will have new instance of Service X.
B: Single, shared instance of Service X is created and is injected into any class that asks for it.
C: A new instance of Service Y is created and injected into any component that asks for it in SampleModule.
D: Service Y is registered with specific ngModule and the same instance of Service Y is available to all components of SampleModule instead of creating one for every component in the SampleModule.
E: A new instance of Service Z is created and injected into any class that asks for it.
F: Angular creates a single, shared instance of Service Z and injects that into any class that asks for it.

Medium

Alias
OOPs
Solve
What does the following TypeScript code print?
 image
 image

Medium

Truthiness
Narrowing
Solve
We wrote the following TypeScript function to work as global print function. The function needs to handle string input, an array of strings as input or null as an input. In case of string and array of strings, it needs to print them to console. For null input, the code should not print anything.
 image
The function is throwing an error when it is called with null - globalConsole(null). This is happening because typeof null is ‘object’ in JavaScript. Here are two modifications of the code to handle this case:
 image
 image
Pick the correct statements:

A: In the case of null input, globalConsole1 won’t produce any compiler errors like globalConsole
B: In the case of null input, globalConsole2 won’t produce any compiler errors like globalConsole
C: globalConsole1 will differ from globalConsole for an empty string
D: globalConsole2 will differ from globalConsole for an empty string

Hard

Types
Solve
Consider the following TypeScript code: 
 image
Which of the following statements are correct:

A: The typescript compiler confirms that toUpperCase exists on the a instance.
B: The typescript compiler states that the toUpperCase function does not exist on the b instance.
C: The typescript compiler confirms that the toUpperCase function exists on the b instance.
D: RectangleType is an array where the type of a fixed number of elements is known.
E: Variables r, g, b are immutable.
F: r, g, b would compile to same type signature

Easy

Background Properties
Solve
Consider the following shorthand CSS example:

background: #f7f7f7 url(jolie.jpg) no-repeat scroll 0px 0px;

Which of the following show the individual background properties represented by the shorthand:
 image

Easy

Colorful sentences
Solve
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be?
 image
A: Sentence 1 will be gray, Sentence 2 will be pink.
B: Both sentences will be gray.
C: Sentence 1 will be pink, Sentence 2 will be gray.
D: Both sentences will be pink.
E: The code does not make sense; will throw an error.

Easy

Links
Solve
In the following HTML, what will be the color of link with class "mark"
 image

Medium

Let's Hack
CSS Property
Solve
Consider the following HTML and CSS:
 image
 image
Which additional CSS rule(s) will render the following image? Choose ALL that apply.
 image
A:
div{
  flex-direction : column;
  align-items : center;
}
B:
div{
  flex-direction : row;
  align-items: center;
}
C:
div{
  flex-direction: column;
  justify-content: center;
}
D:
div{
  flex-direction: row;
  justify-content: center;
}

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

Marker ink component

2 mins

Angular
Solve

Easy

Markup DOM
Templates

2 mins

Angular
Solve

Medium

Providing Dependency
Dependency Injection

3 mins

Angular
Solve

Medium

Alias
OOPs

2 mins

TypeScript
Solve

Medium

Truthiness
Narrowing

3 mins

TypeScript
Solve

Hard

Types

2 mins

TypeScript
Solve

Easy

Background Properties

2 mins

HTML/CSS
Solve

Easy

Colorful sentences

2 mins

HTML/CSS
Solve

Easy

Links

2 mins

HTML/CSS
Solve

Medium

Let's Hack
CSS Property

3 mins

HTML/CSS
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Marker ink component
Angular
Medium2 mins
Solve
Markup DOM
Templates
Angular
Easy2 mins
Solve
Providing Dependency
Dependency Injection
Angular
Medium3 mins
Solve
Alias
OOPs
TypeScript
Medium2 mins
Solve
Truthiness
Narrowing
TypeScript
Medium3 mins
Solve
Types
TypeScript
Hard2 mins
Solve
Background Properties
HTML/CSS
Easy2 mins
Solve
Colorful sentences
HTML/CSS
Easy2 mins
Solve
Links
HTML/CSS
Easy2 mins
Solve
Let's Hack
CSS Property
HTML/CSS
Medium3 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Angular & TypeScript Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Angular & TypeScript Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Reason #7

Detailed scorecards & benchmarks

Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Angular and TypeScript Assessment Test

Why you should use Pre-employment Angular and TypeScript Online Test?

The Angular & TypeScript Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Fundamentals of TypeScript including strong typing and type inference
  • Knowledge of basic HTML and CSS syntax
  • Understanding of Angular framework and its architecture
  • Ability to create and use components in Angular
  • Proficiency in Angular's routing and navigation
  • Experience with data binding and event handling in Angular
  • Familiarity with reactive extensions and observables in Angular
  • Knowledge of lazy loading for performance optimization in Angular
  • Ability to write clean and efficient JavaScript code
  • Understanding of fundamental JavaScript programming concepts

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Angular and TypeScript Online Test?

  • Fundamentals of TypeScript and HTML/CSS

    This skill covers the basics of TypeScript, a typed superset of JavaScript, and HTML/CSS, the core languages used for building web pages. Understanding these fundamentals is essential for developing Angular applications as TypeScript is the recommended language for Angular development, and HTML/CSS are the foundation for building user interfaces.

  • Fundamentals of Angular

    This skill covers the fundamental concepts and principles of Angular framework, including its architecture, components, services, and dependency injection. Having a strong grasp of Angular fundamentals is crucial for developing scalable and maintainable applications with Angular.

  • Core Angular modules

    This skill covers the key Angular modules such as FormsModule, ReactiveFormsModule, HttpClientModule, and RouterModule, which are essential for implementing various functionalities in an Angular application. Understanding these modules enables developers to utilize the full potential of Angular and build robust web applications.

  • Routing and navigation

    This skill covers the implementation of routing and navigation in Angular applications, allowing users to navigate between different views and components. Understanding routing and navigation is important for building complex web applications with multiple pages and views.

  • Data binding and event handling

    This skill covers the concept of data binding, which enables developers to establish a connection between the view and the component data in Angular. It also covers event handling, allowing developers to capture and respond to user interactions. Having a strong understanding of data binding and event handling is crucial for building interactive and dynamic web applications.

  • Reactive extensions and observables

    This skill covers the usage of reactive extensions and observables in Angular applications. Reactive extensions provide powerful tools for handling asynchronous operations and managing data streams. Understanding reactive extensions and observables allows developers to write clean and efficient code that handles complex data flows with ease.

  • Performance improvements with lazy loading

    This skill covers the implementation of lazy loading in Angular applications to improve performance by loading components and modules on-demand. Lazy loading helps reduce the initial load time of an application, especially for larger applications with multiple modules. Understanding lazy loading enables developers to optimize their Angular applications and provide a better user experience.

  • JavaScript Programming

    This skill covers the fundamentals of JavaScript programming, including variables, data types, control flow, functions, and object-oriented programming concepts. JavaScript is the scripting language used by Angular, and having a solid foundation in JavaScript programming is essential for developing Angular applications effectively.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Angular & TypeScript Online Test to be based on.

    TypeScript syntax
    TypeScript types
    TypeScript functions
    TypeScript classes
    HTML tags
    CSS selectors
    Angular components
    Angular modules
    Angular services
    Angular directives
    Angular templates
    Angular data binding
    Angular event handling
    Angular routing
    Angular lazy loading
    Angular observables
    Angular HttpClient
    Angular forms
    Angular pipes
    Angular dependency injection
    JavaScript variables
    JavaScript functions
    JavaScript objects
    JavaScript arrays
    JavaScript loops
    JavaScript conditionals
    JavaScript error handling
    JavaScript closures
    JavaScript promises
    JavaScript async/await
    ECMAScript 6
    Arrow functions
    Template literals
    Destructuring assignment
    Spread operator
    Modules in ES6
    Classes in ES6
    Inheritance in ES6
    Default parameters
    Rest parameters
    Class properties
    Object destructuring
    Array destructuring
    Promise constructor
    Promise methods
    Promise chaining
    Async functions
    Array methods (map, filter, reduce)
    this keyword in JavaScript
    Prototypes in JavaScript
    Hoisting in JavaScript

What roles can I use the Angular and TypeScript Online Test for?

  • Angular Developer
  • Intermediate Angular Developer
  • Web Developer
  • UI Developer - Angular
  • Frontend Developer - Angular
  • Senior Frontend Engineer - Angular
  • Full Stack Developer (Angular)

How is the Angular and TypeScript Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Experience with asynchronous programming in JavaScript
  • Knowledge of JavaScript libraries and frameworks
  • Proficiency in debugging and troubleshooting JavaScript code
  • Understanding of error handling and exception handling in JavaScript
  • Ability to work with APIs and make HTTP requests in JavaScript
  • Experience with front-end development using HTML5 and CSS3
  • Knowledge of responsive web design principles
  • Proficiency in using CSS preprocessors like Sass or Less
  • Familiarity with CSS frameworks like Bootstrap or Foundation
  • Understanding of cross-browser compatibility issues and their solutions

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

Angular and TypeScript Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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