JavaScript challenge ladder
303 challenges
Pick a challenge, solve it in the browser, keep the points.
Transforming collections, reshaping objects, and the classic warm-up algorithms.
Medium — 106 challenges
loading…| Challenge | Solved by | Points |
|---|---|---|
| 01Double a list of numbers | — | 10 pts |
| 02FizzBuzz for one number | — | 15 pts |
| 03Count the vowels | — | 15 pts |
| 04Remove duplicates from an array | — | 15 pts |
| 05Title case a sentence | — | 15 pts |
| 06Factorial of a number | — | 15 pts |
| 07Check for anagrams | — | 15 pts |
| 08Chunk an array | — | 15 pts |
| 09Flatten a two dimensional array | — | 15 pts |
| 10Fibonacci sequence | — | 15 pts |
| 11Find the missing number | — | 15 pts |
| 12Intersection of two arrays | — | 15 pts |
| 13camelCase to snake_case | — | 15 pts |
| 14Group objects by a property | — | 15 pts |
| 15Longest word in a sentence | — | 15 pts |
| 16Count character occurrences | — | 15 pts |
| 17Check if a number is prime | — | 15 pts |
| 18Sum of digits | — | 15 pts |
| 19Compare two flat objects | — | 15 pts |
| 20Rotate an array to the left | — | 15 pts |
| 21Capitalize the odd positions | — | 15 pts |
| 22Merge two sorted arrays | — | 15 pts |
| 23Truncate a string | — | 15 pts |
| 24Binary to decimal | — | 15 pts |
| 25Find a pair that sums to a target | — | 15 pts |
25 of 106 shown