Kata Library: JavaScript Practice
Sign Up
Time to claim your honor
Training
Practice
Complete challenging
Kata
to earn honor and ranks. Re-train to hone technique
Freestyle Sparring
Take turns remixing and refactoring others code through
Kumite
Community
Leaderboards
Achieve honor and move up the global leaderboards
Chat
Join our
Discord
server and chat with your fellow code warriors
Discussions
View our
Github Discussions
board to discuss general Codewars topics
About
Docs
Learn about all of the different aspects of Codewars
Blog
Read the latest news from Codewars and the community
Log In
Sign Up
Library
Collections
Newest
Oldest
Popularity
Positive Feedback
Most Completed
Least Completed
Hardest
Easiest
Name
Relevance
Low Satisfaction
All
My Languages
Agda (Beta)
BF (Beta)
C
CFML (Beta)
Clojure
COBOL (Beta)
CoffeeScript
CommonLisp (Beta)
Coq
C++
Crystal
C#
D (Beta)
Dart
Elixir
Elm (Beta)
Erlang (Beta)
Factor (Beta)
Forth (Beta)
Fortran (Beta)
F#
Go
Groovy
Haskell
Haxe (Beta)
Idris (Beta)
Java
JavaScript
Julia (Beta)
Kotlin
λ Calculus (Beta)
Lean
Lua
NASM
Nim (Beta)
Objective-C (Beta)
OCaml (Beta)
Pascal (Beta)
Perl (Beta)
PHP
PowerShell (Beta)
Prolog (Beta)
PureScript (Beta)
Python
R (Beta)
Racket
Raku (Beta)
Reason (Beta)
RISC-V (Beta)
Ruby
Rust
Scala
Shell
Solidity (Beta)
SQL
Swift
TypeScript
VB (Beta)
Approved & Beta
Approved
Beta
All
Kata I have not trained on
Kata I have not completed
Kata I have completed
8 kyu
easiest
7 kyu
6 kyu
5 kyu
4 kyu
3 kyu
2 kyu
1 kyu
hardest
ASCII Art
1
Algebra
1
Algorithms
14
Arrays
1
Combinatorics
2
Data Structures
3
Dynamic Programming
19
Fundamentals
4
Logic
2
Mathematics
19
Matrix
1
Memoization
4
Number Theory
1
Performance
7
Probability
2
Puzzles
8
Recursion
4
Statistics
2
Strings
2
FEATURED TAGS
Cryptography
Data Science
Debugging
Games
Tutorials
19 Kata Found
5 kyu
Help Suzuki pack his coal basket!
276
user8476848
Dynamic Programming
Algorithms
Data Structures
Mathematics
5 kyu
Sum and Rest the Number with its Reversed and See What Happens
1,375
raulbc777
1 Issue Reported
Fundamentals
Mathematics
Algorithms
Memoization
Dynamic Programming
5 kyu
Working With Coloured Numbers
392
raulbc777
2 Issues Reported
Fundamentals
Data Structures
Algorithms
Mathematics
Logic
Strings
Recursion
Dynamic Programming
5 kyu
Jump to zero (Subtask 4)
58
TLEojxSunlight
1 Issue Reported
Mathematics
Algorithms
Dynamic Programming
Performance
Number Theory
6 kyu
Raise Me to The Third Power, Search My Divisors... .....Could You Believe that?
360
raulbc777
1 Issue Reported
Algorithms
Mathematics
Memoization
Dynamic Programming
6 kyu
Pentabonacci
2,184
raulbc777
4 Issues Reported
Fundamentals
Mathematics
Algorithms
Performance
Dynamic Programming
6 kyu
Find the First Number in Having a Certain Number of Divisors I
936
raulbc777
3 Issues Reported
Fundamentals
Mathematics
Data Structures
Dynamic Programming
Memoization
5 kyu
The Bee
273
EgorArh
Algorithms
Mathematics
Matrix
Puzzles
Performance
Dynamic Programming
3 kyu
Fabergé Easter Eggs crush test
1,935
Ivana
8 Issues Reported
Mathematics
Dynamic Programming
Performance
Algorithms
5 kyu
Substrings Divisible by Power of 2
38
Mednoob
Algorithms
Mathematics
Dynamic Programming
4 kyu
Circular Limited Sums
106
Bubbler
Algorithms
Mathematics
Dynamic Programming
Beta
Balanced centrifuge configurator
6
dfhwze
Status:
Ranking feedback needed
Estimated Rank:
1 kyu
Algorithms
Puzzles
Mathematics
Combinatorics
Arrays
Performance
Algebra
Dynamic Programming
5 kyu
Too many meals
61
lopared
Combinatorics
Performance
Mathematics
Dynamic Programming
5 kyu
Boxes in boxes
115
dfhwze
Algorithms
ASCII Art
Performance
Strings
Puzzles
Memoization
Recursion
Mathematics
Dynamic Programming
6 kyu
Infinite Diceworks: MeanMaxing your rolls
115
Voile
Mathematics
Dynamic Programming
Recursion
Probability
Statistics
Puzzles
6 kyu
Infinite Diceworks: MeanMaxing your rolls (Quantum Mechanically)
35
Voile
Mathematics
Dynamic Programming
Recursion
Probability
Statistics
Puzzles
4 kyu
Domino Tiling - 5 x 2N Board
65
Bubbler
Puzzles
Mathematics
Logic
Dynamic Programming
4 kyu
Domino Tiling - 3 x N Board
73
Bubbler
Algorithms
Mathematics
Dynamic Programming
Puzzles
4 kyu
Domino Tiling - 2 x N Board
141
Bubbler
Mathematics
Algorithms
Dynamic Programming
Puzzles
Confirm
Collect:
undefined
Loading collection data...