Language switcher
Implement a feature to switch the language of a webpage
Theme switcher
Implement a feature to switch between light and dark themes on a webpage
Business Days Calculator
Write a function to calculate the number of business days between two dates
Event Scheduler
Write a function that sorts a list of events in chronological order
Enforce immutability on object properties
Make parts of an object immutabile
Fix the HTML
Fix HTML and improve accessibility on a webpage
Temperature Converter
React component to convert temperatures
Mouse trail
Create a trail of elements that follow the mouse cursor
Impossible button
Create a button that avoids being clicked
Debounce function
Implement a debounce function
Common elements
Write a function that returns the common elements between two arrays
Sticky notes dashboard
Build a sticky notes dashboard with persistence
Stock market simulator
Simulate a stock market with fluctuating stock prices using a reducer
Find the longest string
Write a function that returns the largest string in an array
Reverse each word
Write a function to reverse each word in a string
Slider
Make a carousel slider
fetchWithRetry Promise
Write a function to make fetch request with automatic retries
Centered text
Center a line of text horizontally and vertically
Basic page
Make a basic HTML page
User sign up form
Create a user sign up form in React
Object to array
Turn an object into an array of strings
Password Input
Create a password input component
FizzBuzz
The classic tech test
Count the vowels
Count the number of vowels in a string
Sum an array
Calculate the sum of the numbers in an array
useCounter hook
Create a custom useCounter hook
Sum two numbers to zero
Give an array of numbers, find two that add up to zero
Fibonacci
Write a function that returns the first numbers of the fibonacci sequence
Responsive nav bar
Build a responsive navigation bar
Array flattening
Write a function to flatten an array of arrays
Prime checker
Write a function that checks if a number is prime
Interface for a product
Create a TS interface for a product
Leap year checker
Write a function that calculates if a given year is a leap year
Click counter
Create a React component that counts and displays the number of times a button has been clicked
String reversal
Write a function that reverses a string
Palindrome
Write a function that checks if a word is a palindrome