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TypeScript Online Test

The TypeScript test uses scenario-based MCQ questions and code-tracing questions to evaluate a candidate's understanding of Typescript concepts like Types, ES6 Support, OOP (Classes, Modules, Interfaces) and their ability to write asynchronous code with async/await. Along with TypeScript, the test has MCQ questions to evaluate JavaScript fundamentals and coding questions to evaluate hands-on JavaScript coding skills.

Customized Based On:

  • Experience/ difficulty level
  • Multiple skills in 1 assessment
  • Job description/ role requirements

Covered Topics:

JavaScript fundamentals
Understanding of DOM and web scripting
Typescript basics (Types; ES6)
Creating objects using classes
Reusing Objects through Inheritance
Using different access modifiers
Encapsulating classes/objects
Asynchronous development with Async/Await
Usage of TypeScript with webpack
Exception handling
See full list
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.


Human Resources Manager

Singapore Government

85%
reduction in screening time

Sample Typescript Online Test Questions

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

🧐 Question🔧 Skill💪 Difficulty⌛ Time
Async Await Promises
What will the following code output?
 image
A: 24 after 5 seconds and after another 5 seconds, another 24
B: 24 followed by another 24 immediately
C: 24 immediately and another 24 after 5 seconds
D: After 5 seconds, 24 and 24
E: Undefined
F: NaN
G: None of these

Options:

  • A
  • B
  • C
  • D
  • E
  • F
  • G
Promises Async-Await
JavaScriptMedium2 min
Prototypes and Scope
What will the following code output?
 image

Options:

  • b0e1 5e b0e1 undefined
  • undefined 5e kj18
  • b0e1 5e kj18
  • b0e1 5e b0e1
Prototypes
JavaScriptMedium2 min
Promise Resolve
What does the following code output?
 image

Options:

  • A, B and A, B
  • B, A and B, A
  • A, B and B, A
  • B, A and A, B
Promises Async-Await
JavaScriptEasy2 min
Throw, Try, Async
What does the following JS code output?
 image

Options:

  • Data
  • Error
  • Finale
  • Data Finale
  • Error Finale
Promises Async-Await
JavaScriptEasy2 min
Types
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

Options:

  • A D E
  • A E F
  • A D F
  • B D E
  • B E F
  • B D F
  • C D E
  • C D F
  • C E F
  • A B D E
  • A B E F
  • A B D F
  • A C D E
  • A C E F
  • A C D F
TypeScriptMedium2 min

How to use the Adaface Typescript Online Test

Start screening candidates within minutes with the ready-to-go TypeScript Online Test

1. Choose the most appropriate test for your role

2. Start inviting candidates to complete the assessment

3. Receive real time notifications and shortlist the best candidates

OR Customize the Adaface TypeScript Online Test according to your job description

1. Get a custom assessment from our library of 500+ skills within 48 hours

2. Start inviting candidates to complete the assesment

3. Receive real time notifications and shortlist the best candidates

Adaface TypeScript Online Test is trusted by enterprises worldwide

amazon
PayPal
Morgan Stanley
Adidas
SG Government
Neilsen
UCLA
Ernst and Young
Microsoft
WeWork
Bosch
Optimum Solutions
SAP
Doubtnut
Deloitte
HCL
FusionCharts
United Nations
Sokrati
Love Bonito
ZiMetrics
MTM

About the Adaface Typescript Assessment Test

Evaluate TypeScript technical and coding skills with Adaface skills assessment platform powered by an intelligent chatbot

Topics:

Types
Arrays
Tuples
Enums
TypeScript compiler
ES6 features
Arrow functions
Webpack
Dynamic views
Object-oriented programming (OOP)
Classes, methods and properties
Namespaces
Modules
Interfaces
Generics
Decorators
Closures
Access modifiers
Asynchronous programming
Async/Await

Recommended Roles:

Full Stack Engineer (Typescript)
Backend Engineer Typescript
Frontend Software Developer (TypeScript)
Web Developer (TypeScript)
Node JS + TypeScript Developer
Senior TypeScript Developer
Senior Software Engineer (TypeScript)

Why You Should Use This Typescript Online Assessment Test

The TypeScript Online Assessment Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. The test screens candidates for the typical skills recruiters look for in a TypeScript developer:

  • Types and how to use them
  • Understanding how the TypeScript compiler works
  • ES6 features (Ex: Creating and using arrow functions)
  • Classes, objects, inheritance and encapsulation
  • Namespaces and modules
  • Use Interfaces to define a contract for objects, functions and arrays
  • Generics, Closures and Decorators
  • Asynchronous programming
  • Creating functions that take optional, default and variable number of arguments
  • Analyzing errors and handling exceptions
  • Using Typescript with Webpack to run it inside the browser
  • Creating Dynamic views

Along with TypeScript, code-tracing MCQ questions are used to evaluate JavaScript fundamentals and coding questions to evaluate hands-on JavaScript programming skills.

How is the test customized for Senior TypeScript Developers?

The questions will test advanced topics for tests aimed at senior developers. Here are some topics that we use to create advanced Kotlin questions:

  • How to convert Java code into Kotlin
  • Understand how Java and Kotlin programs interoperate
  • Advanced OOP (Interface Classes, Abstract Classes, Generic Classes, Enums in Kotlin)
  • Advanced collections (MapOf, Arrayof, MutableList)
  • Asynchronous programming techniques (Threading, Callbacks, Futures, promises etc)
  • Reactive extensions and Coroutines

Distribution Of Test Scores

The actual score distribution will vary based on your candidate pipeline quality, but you should typically expect ~20% of the candidates to do well on Adaface assessments.

The score distribution for our assessments follow the normal curve. This is a good sign- standardized tests like SAT and GRE follow the normal distribution (bell curve).

Status quo assessments typically have the exact opposite of the bell curve (too many candidates getting close to 0, too many candidates getting close to 100 and too few candidates in the middle). This is typically because they focus on theoretical questions or trick questions, which are very binary in nature- either you know the trick/ theory or you don’t.

How Adaface Is Different

Adaface conversational assessments are reflective of on-the-job skills and see an 86% completion rate as compared to ~50% for traditional assessment platforms.

OLD WAY

TRADITIONAL TESTS

Theoretical questions/ puzzles

Feels like a test

One-size-fits-all assessments

😞
HIRE IN
Weeks/Months

NEW WAY

ADAFACE ASSESSMENTS

Questions for on-the-job skills

Conversational

Customized
assessments

😀️
HIRE IN
Days

Typescript Online Test FAQs

Can I evaluate JavaScript and TypeScript in the same test?

Yes. We support testing multiple skills in the same test. You can review our standard JavaScript test to get a sense of what kind of questions will be included to test JavaScript alone. The final test will include MCQ questions to evaluate TypeScript, JavaScript and coding questions to evaluate JavaScript.

Can I evaluate React and TypeScript in the same test?

Yes. We support testing multiple skills in the same test. You can review our standard React test to get a sense of what kind of questions will be included to test React skills. The final test will include MCQ questions to evaluate React, TypeScript, HTML/ CSS and coding questions.

Can I evaluate VueJS with TypeScript in the same test?

Yes. We support testing multiple skills in the same test. You can review our standard Vue JS test to get a sense of what kind of questions will be included to test Vue skills. The final test will include MCQ questions to evaluate Vue, TypeScript, HTML/ CSS and coding questions.

Can I evaluate Angular with TypeScript in the same test?

Yes. We support testing multiple skills in the same test. You can review our standard Angular test to get a sense of what kind of questions will be included to test Angular skills. The final test will include MCQ questions to evaluate Angular, TypeScript, HTML/ CSS and coding questions.

How is the test customized for Backend NodeJS TypeScript Developers?

The test will include scenario-based MCQ questions to evaluate Node JS, TypeScript, REST skills and coding questions. You can check our standard NodeJS test to understand how we design NodeJS questions.

What is a custom assessment?

Every role is different and requires a custom assessment to identify top candidates efficiently. Adaface subject matter experts understand your job description/ role requirements and pick the most relevant questions from our library of 10000+ questions to create a technical assessment that helps you find the qualified candidates in your candidate pipeline quickly. All custom assessments are set up based on the job description, role requirements, must-have skills, experience level and salary range within a maximum of 48 hours and you will get an email notification once it goes live.

Check out a sample assessment here (no credit card required).

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.

How is Adaface different from other assessment tools?

We believe that status quo tech assessment platforms are not a fair way for companies to evaluate engineers because they focus on trick questions/ puzzles/ niche algorithms. We started Adaface to help companies find great engineers by assessing on-the-job skills required for a role. Read more about why we started Adaface.

Here's what's different with Adaface:

  • High quality non-googleable questions that test for on-the-job skills as opposed to theoretical knowledge.
  • A friendly conversational assessment with a chatbot, instead of sending a "test" to a candidate. This translates to a higher completion rate. Adaface assessments (86% candidate completion rate), as opposed to traditional tests (40-50% candidate completion rate)
  • Customized assessments for 700+ skills at different experience levels.

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

We have the following anti-cheating features in place:

  • Web proctoring
  • Webcam proctoring
  • Plagairism detection
  • Non-googleable questions
  • Secure browser

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?

The platform is completely self-serve, so here's one way to proceed:

  • You can sign up for free to get a feel for how it works.
  • The free trial includes one sample assessment (Java/ JavaScript) that you will find in your dashboard when you sign up. You can use it to review the quality of questions, and the candidate experience of a conversational test on Adaface.
  • To review the quality of questions, you can also review our public questions for 50+ skills here.
  • Once you're convinced that you want to try it out with real assessments and candidates, you can pick a plan according to your requirements.

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.

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

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