Javascript Ninjas
Easy 2 point Medium 4 points Hard 6 points Ninja 10 points

Question Type Level Solve
Write a function to count vowels and consonants of a string and return an object? Object Medium Solve
Write a function that counts the frequency of numbers and return a frequency count object? Object Medium Solve
Write a function that returns true if the sum of digits in even positions equals the sum of digits in odd positions (counting from the right)? Number Medium Solve
Write a function that returns true if the number is an Armstrong number. What does this mean? Number Medium Solve
Write a function that returns true if the number is divisible by the sum of its digits squared? Number Medium Solve
Write a function that returns the sum of digits of the product of all input numbers? Number Hard Solve
Write a function that multiplies given number by 5? Number Easy Solve
Write a function that sums from 1 to given number? Number Medium Solve
Write a function that calculates factorial of given number? Number Medium Solve
Write a function that checks whether given number is divisible by 5? Number Easy Solve



Level Up Your JavaScript Skills

Train Like a Ninja. Code Like a Pro.

Welcome to JavaScript Ninjas — the ultimate playground for mastering JavaScript through hands-on coding. Whether you're just getting started or sharpening your blade, our interactive challenges, live coding playground, and real-time feedback will push your skills to the next level. Write, run, and test JavaScript directly in your browser. Learn by doing. Solve real problems. Become the JavaScript Ninja you were born to be.