HTML/CSS, JavaScript, Ruby, and SQL Online Test

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The HTML/CSS, JavaScript, Ruby, and SQL online test assesses candidates' knowledge across the whole Web stack from HTML, CSS, and JavaScript on the Web front-end over Ruby on the back-end to SQL for data access.

It's an ideal test for pre-employment screening. A good Ruby full stack developer needs to be familiar in a wide range of technologies.

This online test requires candidates to solve coding problems and find and fix bugs in multiple technologies.

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Free Sample Questions for HTML/CSS, JavaScript, Ruby, and SQL Test

Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.

Ensure

3min
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Easy  
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CODE

JavaScript Error handling Language Public

Implement the ensure function so that it throws an error if called without arguments or the argument is undefined. Otherwise it should return the given value.

Students

3min
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Easy  
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CODE

SQL Aggregation Select Public

Given the following data definition, write a query that returns the number of students whose first name is John. String comparisons should be case sensitive.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL

Avatar

7min
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Easy  
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CODE

HTML/CSS Borders Element size Styling Public

Every user on your website has an image avatar that is displayed when they post a comment. You want to style these images differently from other images on your site. Add a CSS class named avatar that fulfils the following requirements:

  1. The avatar's border is rounded, so that it appears as a circle.
  2. The avatar's width and height are both 150px.
  3. The avatar has a solid border, has a width of 2px, and be colored gray.

For example, the avatar in the template should look like:

Cat avatar

Merge Names

10min
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Easy  
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CODE

Ruby Arrays Public

Implement the unique_names method. When passed two arrays of names, it will return an array containing the names that appear in either or both arrays. The returned array should have no duplicates.

For example, calling unique_names(["Ava", "Emma", "Olivia"], ["Olivia", "Sophia", "Emma"]) should return an array containing Ava, Emma, Olivia, and Sophia in any order.

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Premium Questions for HTML/CSS, JavaScript, Ruby, and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Question Names

These premium questions are included in this pre-built test and can be added to any multi-skill test. Please sign up for a paid plan to view the questions in detail.

Filter, Document Store, Positive Numbers, Greeter, Links, Function Wrapper, Double, Truthy Expressions, Roads, Word Count, Read First Line, Needle, Ranges, New Folder, Log Patch, Log Patch, Shipping, Loading Bar, Ingredients, Read Write Execute, Segment, Segment, Hobbies, Numbers to Text, A Tag, Ad, Addition, Article Style, ATM Locations, Authors, Autocomplete, Baby Names, Ban Users, Bank Branches, Bookmark, Category Tree, Chain Link, Cheapest Product, Christmas Tree, Cities, Confirm, Countries, Crop Ratio, Date Transform, Date Transform, Developers, Editor, Employee Manager, Format Table, Height, Hide Button, Hobbies, Hospital Patients, Index Performance, Menu Items, Merge Stock Index, Movies, Movies Live, Projects, Rectangles, Restaurant Menu, Retirees, Sales, SMS Messages, Student Activities, Tasks, Transactions, Youngest Child, Keywords, Label Color, Link, Loading, Log Parser, Logo, Paragraph, Paragraph, Product Rating, Products, Products, Row Appender, Scale Font Size, Share Button, Shirts, Snapshot, Timesheet, Upload, Username, Username, Vectors, Warehouse, Widgets, Language Teacher, Manager Sales, Delete Orders, Timer, Screen, Email Tables, Average Salary, Movie Genres, Auto Show, Ice Cream Flavors, Poll, Breakfast Menu, Array Search, Department Report, iframe, TestDome Logo, Post Comment, Cards, Reorder, Validation, Table of Names, Blog, Screen Reader, Data Entry, Student Rankings, Welfare Organization, Student Max Score
Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

JavaScript Arrays Ruby Bug fixing Language Closures HTML/CSS CSS selectors Styling Exceptions DOM manipulation Event handling SQL Conditions Views Strings Stream Ranges Monkey patching Arithmetic HTML5 Subqueries Update Iteration Attribute manipulation Element spacing CSS advanced Element size Constraints Create table Database schema Select Create index Performance tuning Flexbox Positioning Alter table Bookmarks Elements and attributes Hash Linked list Aggregation Fonts Dialog box Ordering Integer division Regex Left join Objects Asynchronous calls Indexes Union Group by Insert Joins Hyperlink Animation Serialization XML JSON Sorting Content manipulation Forms Tables Inheritance OOP CTE Delete Callback Classes ECMAScript 2015 Borders Inline styles SQL CASE Responsive design Selectors Recursion IFrame CSS layout Semantic tags Accessibility
Recommended Job Roles

These are the job roles that we recommend for the HTML/CSS, JavaScript, Ruby, and SQL online test.

Full-Stack Developer
JavaScript Developer
Ruby Developer
SQL Developer
Web Developer
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