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Vanilla JavaScript User Interface Questions

Top Vanilla JavaScript UI coding interview questions.

Questions List

  • CounterWarm Up Question

    Build a simple counter that increments whenever a button is clicked
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    3341 completed
  • Contact FormFree

    Build a contact form which submits user feedback and contact details to a back end API
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    1834 completed
  • Holy GrailFree

    Build the famous holy grail layout consisting of a header, 3 columns, and a footer
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    1508 completed
  • Mortgage CalculatorFree

    Build a calculator that computes the monthly mortgage for a loan
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    96 completed
  • TabsFree

    Build a tabs component that displays a list of tab elements and one associated panel of content at a time
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    313 completed
  • Todo ListFree

    Build a Todo list that lets users add new tasks and delete existing tasks
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    901 completed
  • Traffic LightFree

    Build a traffic light where the lights switch from green to yellow to red after predetermined intervals and loop indefinitely
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    157 completed
  • Digital ClockFree

    Build a 7-segment digital clock that shows the current time
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    127 completed
  • New

    Job BoardFree

    Build a job board that displays the latest job postings from Hacker News
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    18 completed
  • AccordionPremium

    Build an accordion component that a displays a list of vertically stacked sections with each containing a title and content snippet
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    422 completed
  • Generate TablePremium

    Generate a table of numbers given the rows and columns
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    231 completed
  • Progress BarPremium

    Build a progress bar component that shows the percentage completion of an operation
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    406 completed
  • Temperature ConverterPremium

    Build a temperature converter widget that converts temperature values between Celsius and Fahrenheit
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    332 completed
  • TweetPremium

    Build a component that resembles a Tweet from Twitter
    Difficulty
    Easy
    Available Frameworks
    Users Completed
    189 completed
  • Accordion IIPremium

    Build an accessible accordion component that has the right ARIA roles, states, and properties
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    80 completed
  • Analog ClockPremium

    Build an analog clock where the hands update and move like a real clock
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    67 completed
  • Like ButtonPremium

    Build a Like button that changes appearance based on the states
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    105 completed
  • Star RatingPremium

    Build a star rating component that shows a row of star icons for users to select the number of filled stars corresponding to the rating
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    270 completed
  • Tabs IIPremium

    Build a semi-accessible tabs component that has the right ARIA roles, states, and properties
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    34 completed
  • Signup FormPremium

    Build a signup form that does validation on user details and submits to a back end API
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    110 completed
  • StopwatchPremium

    Build a stopwatch widget that can measure how much time has passed
    Difficulty
    Medium
    Available Frameworks
    Users Completed
    52 completed
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