What roles can I use the NPM Test for?

Here are few roles for which we recommend this test: Frontend Developer Backend Developer Full Stack Developer Node.js Developer JavaScript Developer Web Application Developer Software Engineer DevOps Engineer Build Engineer Technical Lead

What is NPM Online Test?

The NPM Online Test assesses candidates' proficiency in NPM package management, dependency management, package.json configuration, and NPM CLI commands. It is used by recruiters to identify candidates with strong NPM and Node.js skills.

Can I combine NPM Online Test with JavaScript questions?

Yes, recruiters can request a custom test that includes both NPM and JavaScript skills. Learn more about the JavaScript Online Test .

How to use the NPM Online Test in my hiring process?

Use it as a pre-screening tool in the initial hiring stage. You can add a link in your job post or invite candidates via email to take the test.

Can I test JavaScript and NodeJS together in a test?

Yes, you can combine JavaScript and NodeJS in a single test to get a holistic assessment of these skills. Check out the JavaScript & NodeJS Test .

What are the main JavaScript-related tests?

We offer several JavaScript-related tests: JavaScript Online Test JavaScript & HTML/CSS Test React.js Online Test JavaScript & NodeJS Test

NPM Online Test

Q: What topics are covered in the NPM Online Test?

The test covers skills like NPM Package Management, Dependency Management, Package.json Configuration, NPM CLI Commands, Node.js Fundamentals, Asynchronous JavaScript, Event Loop, JavaScript ES6+ Features, and more.

The NPM Online Test evaluates candidates' proficiency in NPM package management Node.js fundamentals and JavaScript programming. It assesses knowledge of NPM commands package.json configuration dependency management Node.js modules and core JavaScript concepts. The test includes MCQs and coding questions to gauge practical skills in these areas.

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Screen candidates with a 30 mins test

Test duration: ~ 30 mins

Difficulty level: Moderate

Availability: Available as custom test

Questions:

5 NPM MCQs
5 NodeJS MCQs
5 JavaScript MCQs

Covered skills:

NPM Package Management

Dependency Management

Package.json Configuration

NPM CLI Commands

Node.js Fundamentals

Node.js Modules

Asynchronous JavaScript

Event Loop

JavaScript ES6+ Features

JavaScript Functions and Closures

Error Handling

JavaScript DOM Manipulation

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Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

Use the NPM Test to shortlist qualified candidates

The NPM 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:

Able to efficiently handle exceptions and errors
Demonstrates understanding of folder structures and organization
Proficient in working with JSON data
Able to write effective queries for database manipulation
Ability to work with database concepts such as referencing and operators
Familiarity with database objects and their relationships
Skilled in working with URLs and handling URL parameters
Able to create and manipulate tables in a database

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Screen candidates with the highest quality 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 15,000+ questions. The actual questions on this NPM Online Test will be non-googleable.

🧐 Question
Medium I/O cycle and main module Event Loop	Solve
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
Easy Res methods	Solve
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
Medium Phases and Timers Event Loop	Solve
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
Medium Async Await Promises Promises Async-Await	Solve
What will the following code output? 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
Medium Bitcoin prices Axios Promises	Solve
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
Medium My Module Scope	Solve
What will the output of the following JavaScript code be?
Medium Promise Resolve Promises Async-Await	Solve
What does the following code output?
Easy Throw, Try, Async Promises Async-Await	Solve
What does the following JS code output?

	🧐 Question	🔧 Skill
	Medium I/O cycle and main module Event Loop	2 mins NodeJS	Solve
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Easy Res methods	3 mins NodeJS	Solve
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Medium Phases and Timers Event Loop	2 mins NodeJS	Solve
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Medium Async Await Promises Promises Async-Await	2 mins JavaScript	Solve
What will the following code output? 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
	Medium Bitcoin prices Axios Promises	2 mins JavaScript	Solve
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	Medium My Module Scope	2 mins JavaScript	Solve
What will the output of the following JavaScript code be?
	Medium Promise Resolve Promises Async-Await	2 mins JavaScript	Solve
What does the following code output?
	Easy Throw, Try, Async Promises Async-Await	2 mins JavaScript	Solve
What does the following JS code output?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	I/O cycle and main module Event Loop	NodeJS	Medium	2 mins	Solve
Review the following NodeJS code: Pick the correct statements: A: X will be logged after Y always B: Y will be logged after X always C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process D: In this case, the function calls are scheduled in the main module and not in the I/O cycle E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left
	Res methods	NodeJS	Easy	3 mins	Solve
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request? A) Will be left hanging indefinitely B) Will get an internal server error - 500 C) Will get a service unavailable error - 503 D) Will be left hanging for a while and then request timeout error - 408
	Phases and Timers Event Loop	NodeJS	Medium	2 mins	Solve
Review the following NodeJS code: Pick the correct statements: A: Adaface will be logged after Lovelace. B: Lovelace will be logged after Adaface. C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.
	Async Await Promises Promises Async-Await	JavaScript	Medium	2 mins	Solve
What will the following code output? 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
	Bitcoin prices Axios Promises	JavaScript	Medium	2 mins	Solve
Review the following JavaScript code and pick the correct options: Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?
	My Module Scope	JavaScript	Medium	2 mins	Solve
What will the output of the following JavaScript code be?
	Promise Resolve Promises Async-Await	JavaScript	Medium	2 mins	Solve
What does the following code output?
	Throw, Try, Async Promises Async-Await	JavaScript	Easy	2 mins	Solve
What does the following JS code output?

Test candidates on core NPM Hiring Test topics

Folder structures: Folder structures refer to the organization and arrangement of files and directories within a computer system. In the context of this test, measuring this skill is important as it demonstrates the candidate's ability to effectively structure and organize their project files, ensuring clarity and maintainability.

JSON: JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. Assessing this skill in the test is crucial as it reflects the candidate's understanding of how to work with JSON data, manipulate and parse JSON objects, and use JSON formatting in web applications.

Queries: Queries involve retrieving specific data from a database using SQL. Evaluating this skill is important for recruiters as it measures the candidate's ability to construct and execute queries, demonstrating their proficiency in accessing and manipulating data efficiently.

Database: The database skill assesses the candidate's knowledge and understanding of managing relational databases, including creating, querying, and modifying database tables using SQL. Measuring this skill is important as it reflects the candidate's ability to work with database systems, design efficient database schemas, and perform data manipulation tasks.

Referencing: Referencing in programming refers to the ability to access and use data or objects that are stored in one location from another location. This skill is measured in the test to assess the candidate's capability to appropriately reference and utilize data or resources, showcasing their understanding of how to establish connections and relationships between different parts of a program.

Operators: Operators in programming are symbols or keywords that perform specific operations on operands. Measuring this skill in the test is important as it indicates the candidate's proficiency in using different operators to perform various calculations, comparisons, and logical operations, highlighting their ability to write efficient and effective code.

Database Objects: Database objects refer to the components that make up a database, such as tables, views, indexes, and stored procedures. Assessing this skill is important for recruiters as it reflects the candidate's understanding of the different database objects and their purpose, as well as their ability to create, modify, and manage these objects effectively.

URL: A URL (Uniform Resource Locator) is the address of a specific web resource, such as a webpage or a file. Evaluating this skill in the test is crucial as it measures the candidate's knowledge and understanding of how to work with URLs, including constructing and parsing URLs, handling query parameters, and navigating between webpages or resources.

Tables: Tables are one of the fundamental components of a relational database and are used to store and organize data in a structured manner. Measuring this skill is important as it demonstrates the candidate's understanding of how to create, modify, and manage database tables, including defining appropriate data types, constraints, and relationships, showcasing their ability to design and implement efficient database structures.

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