JavaScript challenge ladder
303 challenges
Pick a challenge, solve it in the browser, keep the points.
Values, conditions, strings, and the array methods you reach for every day.
Easy — 139 challenges
loading…| Challenge | Acceptance | Solved by | Points |
|---|---|---|---|
| 01Write a greeting function | — | — | 10 pts |
| 02Validate a passing score | — | — | 10 pts |
| 03Double a list of numbers | — | — | 10 pts |
| 04Sum of two numbers | — | — | 10 pts |
| 05Convert minutes to seconds | — | — | 10 pts |
| 06Return the next number | — | — | 10 pts |
| 07Area of a triangle | — | — | 10 pts |
| 08Convert age to days | — | — | 10 pts |
| 09Hours to seconds | — | — | 10 pts |
| 10Is the number zero or less? | — | — | 10 pts |
| 11Check string length equality | — | — | 10 pts |
| 12Boolean to string | — | — | 10 pts |
| 13String to integer | — | — | 10 pts |
| 14Check even or odd | — | — | 10 pts |
| 15First element in an array | — | — | 10 pts |
| 16Last element in an array | — | — | 10 pts |
| 17Check if an array contains an item | — | — | 10 pts |
| 18Reverse an array | — | — | 10 pts |
| 19Find the smallest number | — | — | 10 pts |
| 20Find the largest number | — | — | 10 pts |
| 21Concatenate two arrays | — | — | 10 pts |
| 22Reverse a string | — | — | 10 pts |
| 23Count a character in a string | — | — | 10 pts |
| 24Capitalize the first letter | — | — | 10 pts |
| 25Check for an empty string | — | — | 10 pts |
25 of 139 shown