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NPM Online Test

The NPM Online Test is preferred by recruiters to assess on-the-job skills of candidates before an interview. It reduces technical screening time by 80% by enabling employers to identify qualified candidates.

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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:
Folder structures
JSON
Queries
Database
Referencing
Operators
Database Objects
URL
Tables
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Use Adaface tests trusted by recruitment teams globally

Adaface is used by 1500+ businesses in 80 countries.

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

Amazon Morgan Stanley Vodafone United Nations HCL PayPal Bosch WeWork Optimum Solutions Deloitte NCS Sokrati J&T Express Capegemini

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:
 image
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:
 image
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?
 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

Medium

Bitcoin prices
Axios
Promises
Solve
Review the following JavaScript code and pick the correct options: 
 image
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?
 image
 image

Medium

Promise Resolve
Promises
Async-Await
Solve
What does the following code output? 
 image

Easy

Throw, Try, Async
Promises
Async-Await
Solve
What does the following JS code output?
 image
🧐 Question🔧 Skill

Medium

I/O cycle and main module
Event Loop

2 mins

NodeJS
Solve

Easy

Res methods

3 mins

NodeJS
Solve

Medium

Phases and Timers
Event Loop

2 mins

NodeJS
Solve

Medium

Async Await Promises
Promises
Async-Await

2 mins

JavaScript
Solve

Medium

Bitcoin prices
Axios
Promises

2 mins

JavaScript
Solve

Medium

My Module
Scope

2 mins

JavaScript
Solve

Medium

Promise Resolve
Promises
Async-Await

2 mins

JavaScript
Solve

Easy

Throw, Try, Async
Promises
Async-Await

2 mins

JavaScript
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
I/O cycle and main module
Event Loop
NodeJS
Medium2 mins
Solve
Res methods
NodeJS
Easy3 mins
Solve
Phases and Timers
Event Loop
NodeJS
Medium2 mins
Solve
Async Await Promises
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Bitcoin prices
Axios
Promises
JavaScript
Medium2 mins
Solve
My Module
Scope
JavaScript
Medium2 mins
Solve
Promise Resolve
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Throw, Try, Async
Promises
Async-Await
JavaScript
Easy2 mins
Solve

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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love bonito

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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It's very easy to share assessments with candidates and for candidates to use. We get good feedback from candidates about completing the tests. Adaface are very responsive and friendly to deal with.

Kirsty Wood, Human Resources, WillyWeather

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We were able to close 106 positions in a record time of 45 days! Adaface enables us to conduct aptitude and psychometric assessments seamlessly. My hiring managers have never been happier with the quality of candidates shortlisted.

Amit Kataria, CHRO, Hanu

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love bonito

We evaluated several of their competitors and found Adaface to be the most compelling. Great library of questions that are designed to test for fit rather than memorization of algorithms.

Swayam Narain, CTO, Affable

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Have questions about the NPM Hiring Test?

How does pricing work?

You can check out our pricing plans.

Can I customize the test?

Yes, absolutely. Custom assessments are set up within 48 hours 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. You can also customize a test by uploading your own questions.

Can I combine multiple skills into one test?

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.

What roles can I use the NPM Test for?

Here are few roles for which we recommend this test:

  • JavaScript Developer
  • NodeJS Developer
Can I see a sample test, or do you have a free trial?

Yes!

The free trial includes one sample technical test (Java/ JavaScript) and one sample aptitude test 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 giving a test on Adaface.

You can preview any of the 500+ tests and see the sample questions to decide if it would be a good fit for your requirements.

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.

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.

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