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Front End Engineer · Web Developer · Full Stack Engineer
CounterWarm Up Question
Build a simple counter which increments whenever a button is clickedContact FormFree
Build a contact form which submits user feedback and contact details to a back end APIHoly GrailFree
Build the famous holy grail layout consisting of a header, 3 columns, and a footerTodo ListFree
Build a Todo list that lets users add new tasks and delete existing tasksAccordionPremium
Build an accordion component that a displays a list of vertically stacked sections that each contain a title and content snippetGenerate TablePremium
Generate a table of numbers given the rows and columnsjQuery.cssPremium
Implement a jQuery-like function that sets the style of a DOM elementProgress BarPremium
Build a progress bar component which shows the percentage completion of an operationProgress BarsPremium
Build a list of progress bars which fill up gradually when they are added to the pageTemperature ConverterPremium
Build a temperature converter widget that converts temperature values between Celsius and FahrenheitTweetPremium
Build a component that resembles a Tweet from TwitterTabsPremium
Build a tabs component that a displays a list of tab elements and one associated panel of content at a timeAccordion IIPremium
Build an accessible accordion component that has the right ARIA roles, states, and propertiesAccordion IIIPremium
Build a fully accessible accordion component that has keyboard support according to ARIA specificationsAnalog ClockPremium
Build an analog clock where the hands update and move like a real clockgetElementsByTagNamePremium
Implement a function to get all DOM elements which match a tagGrid LightsPremium
Build a grid of lights where the lights deactivate in the reverse order they were activatedHTML SerializerPremium
Implement a function to serialize an object into a HTML string with indentationIdentical DOM TreesPremium
Implement a function to determine if two DOM trees are the samejQuery Class ManipulationPremium
Implement a set of jQuery-like functions that manipulates classes on a DOM elementLike ButtonPremium
Build a Like button that changes appearance based on the statesProgress Bars IIPremium
Build a list of progress bars which fill up gradually in sequence, one at a timeStar 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 ratingTabs IIPremium
Build a semi-accessible tabs component that has the right ARIA roles, states, and propertiesTabs IIIPremium
Build a fully accessible tabs component that has keyboard support according to ARIA specificationsText SearchPremium
Implement a function to highlight text if a searched term appears within itTraffic LightPremium
Build a traffic light where the lights switch from green to yellow to red after predetermined intervals and loop indefinitelyDigital ClockPremium
Build a 7-segment digital clock which shows the current timegetElementsByClassNamePremium
Implement a function to get all DOM elements that contain the specified classesProgress Bars IIIPremium
Build a list of progress bars which fill up gradually concurrently, up to a limit of 3Text Search IIPremium
Implement a function to highlight text if searched terms appear within itSignup FormPremium
Build a signup form that does validation on user details and submits to a back end APIStopwatchPremium
Build a stopwatch widget which can measure how much time has passedProgress Bars IVPremium
Build a list of progress bars which fill up gradually concurrently, up to a limit of 3 and allows for pausing and resumingTable of ContentsPremium
Implement a function to construct a table of contents from a HTML document