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JavaScript & HTML/CSS Online Test

The JavaScript HTML Online Test uses scenario-based MCQs to evaluate candidates on their understanding of JavaScript and HTML concepts, syntax, and usage. The test assesses candidates on their knowledge of JavaScript language fundamentals, such as data types, control structures, functions, and objects, as well as HTML markup, elements, attributes, and forms. It also evaluates their familiarity with JavaScript libraries and frameworks, such as jQuery, React, and Angular, and their ability to manipulate the Document Object Model (DOM) using JavaScript.

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Screen candidates with a 40 mins test

Test duration:  40 mins
Difficulty level:  Moderate
Availability:  Ready to use
Questions:
  • 5 JavaScript MCQs
  • 5 HTML/CSS MCQs
  • 1 JavaScript Coding Question
Covered skills:
JavaScript Basics
JS ES6
JS OOPs
Handling APIs
Asynchronous Node.js and promises
CSS Box model
Flexbox and Grid layouts
Responsive CSS
JavaScript Programming
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Use the JavaScript & HTML/CSS Test to shortlist qualified candidates

The JavaScript & HTML/CSS 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:

  • Ability to efficiently handle exceptions and errors
  • Ability to write clean and efficient JavaScript code
  • Ability to understand and use ES6 features in JavaScript
  • Ability to write Object-Oriented JavaScript code
  • Ability to handle and manipulate data from APIs
  • Ability to work with asynchronous programming in Node.js and promises
  • Ability to create responsive CSS layouts
  • Ability to understand and implement the CSS Box model
  • Ability to use Flexbox and Grid layouts in CSS
  • Ability to write CSS code for different screen sizes
  • Ability to solve JavaScript programming challenges
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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 JavaScript & HTML/CSS Test will be non-googleable.

🧐 Question

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

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

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

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
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
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

Test candidates on core JavaScript & HTML/CSS Hiring Test topics

JavaScript Basics: JavaScript Basics refers to the fundamental concepts of the JavaScript programming language, such as variables, data types, operators, control flow statements, and basic syntax. This skill is measured in the test to evaluate a candidate's foundational knowledge of JavaScript, which is essential for any JavaScript developer.

JS ES6: JS ES6 (ECMAScript 6) refers to the latest version of JavaScript, which introduced new features and syntax enhancements. This skill is measured in the test to assess a candidate's familiarity with modern JavaScript development practices and their ability to write clean and efficient code using ES6 features.

JS OOPs: JS OOPs (Object-Oriented Programming) refers to the use of objects and classes in JavaScript to organize and structure code. This skill is measured in the test to evaluate a candidate's understanding of OOP principles and their ability to design and implement scalable and maintainable JavaScript applications.

Handling APIs: Handling APIs involves making requests to external APIs (Application Programming Interfaces) and processing the responses. This skill is measured in the test to assess a candidate's ability to work with APIs, retrieve data using HTTP requests, and manipulate JSON or XML responses to extract relevant information for web applications.

Asynchronous Node.js and promises: Asynchronous Node.js programming involves writing code that can handle multiple tasks simultaneously without blocking the execution. Promises are a modern JavaScript feature used for handling asynchronous operations and managing their results. This skill is measured in the test to evaluate a candidate's proficiency in writing asynchronous code using Node.js and dealing with promises for efficient and robust application development.

CSS Box model: CSS Box model refers to the layout and sizing of HTML elements using properties like margin, padding, border, and content width and height. This skill is measured in the test to assess a candidate's understanding of how the box model works and their ability to manipulate element dimensions and positioning using CSS.

Flexbox and Grid layouts: Flexbox and Grid are CSS layout models used to create flexible and responsive web designs. Flexbox provides a one-dimensional layout, while Grid enables two-dimensional layouts. This skill is measured in the test to evaluate a candidate's knowledge of CSS layout techniques and their ability to create and customize responsive designs using Flexbox and Grid.

Responsive CSS: Responsive CSS involves creating web designs that adapt to different screen sizes and devices. This skill is measured in the test to assess a candidate's understanding of responsive design principles and their ability to use CSS media queries, fluid grids, and flexible images to ensure optimal user experience across various devices and screen resolutions.

JavaScript Programming: JavaScript Programming refers to the overall coding skills and problem-solving abilities in JavaScript. This skill is measured in the test to evaluate a candidate's proficiency in writing well-structured and functional JavaScript code, their knowledge of algorithms and data structures, and their ability to solve programming challenges using JavaScript.

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Have questions about the JavaScript & HTML/CSS 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 JavaScript & HTML/CSS Test for?

Here are few roles for which we recommend this test:

  • Front-end Developer
  • Web Developer
  • Full Stack Developer
  • JavaScript Developer
  • HTML/CSS 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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