Web Developer Online Test
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The Web Developer online test assesses knowledge of front-end web development skills (HTML, CSS, and JavaScript) through a series of live coding questions that test the ability to implement and style a user interface. Tasks on this test are executed inside the Google Chrome web browser.
The assessment includes solving work-sample tasks such as:
- Defining HTML elements and their attributes, and applying CSS styles to them.
- Handling user events and manipulating DOM to build responsive web pages.
- Serializing to/from JSON and making AJAX calls.
A good front-end web developer needs a solid understanding of HTML, CSS, and JavaScript in order to create modern, interactive, and responsive websites and user interfaces.
Sample public questions
Your company is analyzing malware which targets numerical record files.
The malware uses a sliding window over the array of numbers in a file, and tries to match the following pattern:
T, -, -, X, -, -, -, T
Where the position ‘X' is compared to each position 'T'. The window is moved so 'X’ passes through all the values.
The malware has the following rules:
- If any of the ‘T' positions in the pattern are bigger or equal to 'X’ the malware replaces 'X' with 0.
- If the 'X' position in the pattern is near the left or right border and is missing a 'T' position neighbor, only the other side is considered.
- The malware finds all the positions first and only then sets them to 0.
For example, if the values in a record file are the following:
[1, 2, 0, 5, 0, 2, 4, 3, 3, 3]
The expected values after the malware runs are:
[1, 0, 0, 5, 0, 0, 0, 3, 3, 0]
In this example, number 4 was set to 0 because 5 is the bigger number.
Implement the simulate function so that the malware behavior is replicated for further study.
Write CSS so that the link <a href="http://www.testdome.com">Check documentation</a> looks like the one in the image below, and the cursor looks like a question mark when hovering over the link:
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91 more premium Web Developer questions
Positive Numbers, Links, Truthy Expressions, Ad, Article Style, Cities, Editor, Format Table, Keywords, Loading, Logo, Shirts, Upload, Warehouse, Widgets, iframe, Max Sum, Launch Time, Function Wrapper, Link, Unique Numbers, Load URL, Photon Frequency, Addition, Color Codes, Tax Calculator, Bookmark, Screen Reader, Game Offer, Bicycle Report, Curious Leaf, Gaming Console, Travel Blog, Confirm, Blog, Christmas Tree, Data Entry, Price List, Ice Cream Flavors, TestDome Logo, Row Appender, Segment, Height, Product Rating, Validation, Array Search, Screen, Timer, Username, Snapshot, Scale Font Size, Paragraph, Hide Button, A Tag, Hobbies, Loading Bar, Double, Table of Names, Filter, Reorder, Share Button, Trading Data Paging, New Folder, Shipping, Chain Link, Node, Read Write Execute, Numbers To Text, Paper Strip, Special Actions, Memory Game, Log Parser, Log Patch, Cards, Baby Names, Increase Priority, Ticket Transition, Post Comment, Jogging App, Friend, Construction Game, Flimsy Ladder, Email Tables, Circuit Simulator, Chemical Machine, Timesheet, Calories Burned, Vectors, Products, Date Transform, Label Color.
Skills and topics tested
- JavaScript
- Closures
- HTML/CSS
- CSS Selectors
- Styling
- Language
- Element Spacing
- Fonts
- Elements and Attributes
- HTML5
- Animation
- Forms
- Positioning
- Hyperlink
- IFrame
- Algorithmic Thinking
- Timing Events
- Exceptions
- Dictionary
- Ajax
- HTTP
- Promise
- Arrays
- CSS Advanced
- Element Size
- Associative Arrays
- Classes
- Objects
- Bookmarks
- Accessibility
- CSS Basics
- Tables
- Responsive Design
- UI
- Dialog Box
- Event Handling
- Semantic Tags
- Selectors
- Borders
- CSS Layout
- Content Manipulation
- DOM Manipulation
- Arithmetic
- Attribute Manipulation
- Recursion
- Bug Fixing
- ECMAScript 2015
- Asynchronous Calls
- Callback
- Regex
- Strings
- Iteration
- JSON
- Pagination
- Serialization
- Sorting
- Linked List
- Tree
- XML
- Monkey Patching
- Flexbox
- Graphs
- Inline Styles
- Conditions
For job roles
- JavaScript Developer
- UI/UX Developer
- Web Front-End Developer
Sample candidate report
What others say
Simple, straight-forward technical testing
TestDome is simple, provides a reasonable (though not extensive) battery of tests to choose from, and doesn't take the candidate an inordinate amount of time. It also simulates working pressure with the time limits.
Jan Opperman, Grindrod Bank
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