frontendeval

Land your next frontend gig

Free exercises to practice for modern frontend development interviews

The frontend development interview landscape is evolving

Companies are waking up and recognizing that Leetcode-style questions assess your frontend skills about as well as questions about your favorite breakfast cereal do. Get ahead of the curve by training with exercises that mimic the questions asked by top Silicon Valley companies and startups.

Practical exercises Increasingly, frontend interviews resemble your day job. Don’t get stuck practicing yesterday’s interview techniques.
Hints to get unstuck Reveal just the right amount of hints to move you along without spoilers.
Additional Challenges Looking to expand on the question? Try our additional challenges.

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Memory game
New

Create a card-matching memory game

Undoable counter

Create a simple counter with undo/redo functionality

Selectable grid

Create an interface where you can click and drag to select multiple boxes in a grid

FAQ component

Create a re-usable "Frequently Asked Questions" component

Countdown timer

Create a countdown timer that notifies the user

Shopping list

Create a shopping list app with autocomplete item entry

Infinitely scrolling tiles

Create infinitely scrolling rows of puppies and kittens

Debounce

Implement a barebones debounce function

Connect Four

Create a 2-player game of Connect Four

Job board

Create a job board that pulls the latest job postings from HackerNews

Array.prototype.map

Implement a barebones Array function

Word games

Create a word guessing game

Rolling dice

Create a dice roller for your next emergency Yahtzee game

Crypto converter

Create a Cryptocurrency converter

Analog clock

Create a working analog clock

Multi-step form

Create a single submittable form that spans multiple screens

Mortgage calculator

Turn a math equation into a repeatable function

Modal overlay

Build a modal control and overlay

Two-factor code input

Build a usable multi-field code input

Snake game

Create an HTML/CSS/JS version of Snake

Image carousel

Build an auto-playing image carousel

Data fetching and visualization

Build a histogram chart from a list of randomly-generated numbers