Why you should use Dart Test?

The Dart 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: Understanding Dart Basics and syntax Working with Variables and Data Types in Dart Implementing Control Flow in Dart Utilizing Functions in Dart Applying Object-Oriented Programming concepts in Dart Working with Collections in Dart Handling Errors and Exceptions in Dart Implementing Asynchronous Programming in Dart Testing and Debugging Dart code Integrating Dart with other technologies

Dart Test

Q: What topics are covered in the Dart Test?

Dart Basics Variables and Data Types Control Flow Functions Object-Oriented Programming Collections Error Handling Asynchronous Programming Testing and Debugging

About the test:

The Dart Online test uses code-tracing MCQ questions to evaluate candidates' knowledge of the Dart programming language. The test uses coding questions to evaluate candidate's hands-on knowledge with Dart.

Covered skills:

Dart Basics
Control Flow
Object-Oriented Programming
Error Handling
Testing and Debugging

Variables and Data Types
Functions
Collections
Asynchronous Programming

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9 reasons why

Adaface Dart Assessment Test is the most accurate way to shortlist Dart Developers

Reason #1

Tests for on-the-job skills

The Dart 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 basic Dart syntax and concepts
Ability to declare and use variables and data types in Dart
Proficiency in control flow statements and loops in Dart
Knowledge of functions and their usage in Dart
Understanding the principles of object-oriented programming in Dart
Ability to work with collections and data structures in Dart
Knowledge of error handling techniques in Dart
Familiarity with asynchronous programming in Dart
Proficiency in testing and debugging Dart code

Reason #2

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

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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 Dart Online Test will be non-googleable.

🧐 Question
Medium Async Await Asynchronous Programming	Try practice test
Review the following Dart code: The code reads data from a file synchronously. The code blocks while waiting for file I/O. Which of the following is the proper asynchronous version of the same code? - Assume readAsString is asynchronous version of readAsStringSync - Lines with changes compared to original code are marked with // #
Easy Iterable Sync Asynchronous Programming	Try practice test
What would the following Dart code print?
Medium Method Overriding Constructors Inheritance Method Overriding	Try practice test
Consider the following Dart code: What will be the output of the above Dart code?
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 Async Await Asynchronous Programming	3 mins Dart	Try practice test
Review the following Dart code: The code reads data from a file synchronously. The code blocks while waiting for file I/O. Which of the following is the proper asynchronous version of the same code? - Assume readAsString is asynchronous version of readAsStringSync - Lines with changes compared to original code are marked with // #
	Easy Iterable Sync Asynchronous Programming	2 mins Dart	Try practice test
What would the following Dart code print?
	Medium Method Overriding Constructors Inheritance Method Overriding	2 mins Dart	Try practice test
Consider the following Dart code: What will be the output of the above Dart code?
	Easy Registration Queue Logic Queues	30 mins Coding	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	30 mins Coding	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	💪 Difficulty	⌛ Time
	Async Await Asynchronous Programming	Dart	Medium	3 mins	Try practice test
Review the following Dart code: The code reads data from a file synchronously. The code blocks while waiting for file I/O. Which of the following is the proper asynchronous version of the same code? - Assume readAsString is asynchronous version of readAsStringSync - Lines with changes compared to original code are marked with // #
	Iterable Sync Asynchronous Programming	Dart	Easy	2 mins	Try practice test
What would the following Dart code print?
	Method Overriding Constructors Inheritance Method Overriding	Dart	Medium	2 mins	Try practice test
Consider the following Dart code: What will be the output of the above Dart code?
	Registration Queue Logic Queues	Coding	Easy	30 mins	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
	Visitors Count Strings Logic	Coding	Medium	30 mins	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.

Reason #4

1200+ customers in 75 countries

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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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Dart 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 Dart 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.

Reason #7

Detailed scorecards & benchmarks

View sample scorecard

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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.

Reason #9

Advanced Proctoring

Learn more

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About the Dart Online Test

Why you should use Pre-employment Dart Test?

The Dart 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:

Understanding Dart Basics and syntax
Working with Variables and Data Types in Dart
Implementing Control Flow in Dart
Utilizing Functions in Dart
Applying Object-Oriented Programming concepts in Dart
Working with Collections in Dart
Handling Errors and Exceptions in Dart
Implementing Asynchronous Programming in Dart
Testing and Debugging Dart code
Integrating Dart with other technologies

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 Dart Test?

Dart Basics
Dart Basics refers to the fundamental concepts and syntax of the Dart programming language, such as variables, expressions, and control flow. Understanding Dart Basics is crucial for developers to write clean and efficient code in Dart.
Variables and Data Types
Variables and Data Types encompass the different types of data that can be stored in variables and manipulated in Dart. This skill measures a candidate's ability to correctly declare and use variables, as well as their knowledge of data types and type conversions.
Control Flow
Control Flow involves the flow of execution in a program, including conditionals (if, else if, else), loops (for, while), and switch statements. This skill assesses a candidate's understanding of how to control the flow of their Dart code based on different conditions and iteratively execute certain blocks of code.
Functions
Functions in Dart are reusable blocks of code that perform specific tasks. This skill evaluates a candidate's familiarity with creating and using functions, including defining function parameters, returning values, and understanding the scope of variables within functions.
Object-Oriented Programming
Object-Oriented Programming (OOP) is a programming paradigm that uses objects to model real-world concepts. This skill measures a candidate's knowledge of OOP concepts in Dart, such as classes, objects, inheritance, and encapsulation, which are essential for building modular and maintainable code.
Collections
Collections refer to data structures that store multiple elements in a single variable. This skill assesses a candidate's understanding of different collections in Dart, including lists, sets, and maps, and their ability to perform operations like iterating, accessing, adding, and removing elements from these collections.
Error Handling
Error Handling involves catching and handling errors and exceptions that can occur during the execution of a Dart program. This skill measures a candidate's proficiency in using try-catch blocks, throwing and handling custom exceptions, and understanding the concept of stack traces to improve error diagnostics and debugging.
Asynchronous Programming
Asynchronous Programming in Dart enables concurrent execution, allowing tasks to execute independently and not block the main thread. This skill evaluates a candidate's familiarity with asynchronous programming concepts, such as using async and await keywords, Futures, Streams, and handling asynchronous errors, which are essential for efficient and responsive Dart applications.
Testing and Debugging
Testing and Debugging skills assess a candidate's ability to identify and fix issues in Dart code. This includes writing and executing unit tests, using debugging tools to pinpoint errors, and employing best practices to ensure code quality and correctness.
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 Dart Online Test to be based on.
Variables
Data Types
Flow Control
Conditional Statements
Loops
Functions
Classes
Inheritance
Polymorphism
Abstraction
Encapsulation
Lists
Maps
Sets
Exception Handling
Futures
Async/Await
Unit Testing
Debugging Techniques
Dart SDK
Collections
Type Inference
Generic Types
Interfaces
Mixins
Constructors
Getters and Setters
Overriding Methods
Dart Packages
Concurrency
Streams
Serialization
File Handling
Isolates
Dart Development Environment
Lambda Functions
Type Casting
Null Safety
Type Annotations
Immutable Collections
Iterable Operations
Cascade Notation
Named Parameters
Error Propagation
Callable Classes
Data Transfer Objects (DTO)
Internationalization and Localization
Dependency Injection
Mixins with Interfaces
Platform Channels
Mocking and Testing Dependencies
Code Documentation
Code Formatting
Code Review

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What roles can I use the Dart Test for?

Dart Developer
Flutter Developer
Senior Dart Developer

How is the Dart 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

Developing efficient algorithms using Dart
Optimizing performance in Dart applications
Designing and implementing Dart APIs
Securing Dart applications from vulnerabilities
Utilizing Dart's reflection capabilities
Implementing design patterns in Dart
Working with external libraries and frameworks in Dart
Scaling and optimizing Dart applications for large-scale systems
Using Dart for cross-platform development
Applying advanced data manipulation and transformation in Dart

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

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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

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Dart 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.