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Train Now

Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.

Description

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7 kyu
String Reordering
8,119user3010812
Fundamentals
Strings
Lists
8 kyu
Remove duplicates from list
40,400wichu
Fundamentals
Arrays
Lists
7 kyu
Unpacking Arguments
13,607user578387
Functional Programming
Fundamentals
8 kyu
A Strange Trip to the Market
16,298sergarrick
Regular Expressions
Strings
Fundamentals
8 kyu
Classy Classes
18,515matt c
Fundamentals
Object-oriented Programming
8 kyu
Broken Counter
7,003BattleRattle
Debugging
Object-oriented Programming
8 kyu
Classy Extentions
12,843matt c
Fundamentals
Object-oriented Programming
8 kyu
SpeedCode #3 × Fun with ES6 Classes #5 - Dogs and Classes
3,184donaldsebleung
Object-oriented Programming
Refactoring
Puzzles
8 kyu
Barking mad
11,551niknmix
Fundamentals
Object-oriented Programming
7 kyu
Thinkful - Object Drills: Quarks
3,913Grae-Drake
Fundamentals
Object-oriented Programming
7 kyu
JavaScript class-like objects
11,392jhoffner
Object-oriented Programming
Fundamentals
7 kyu
Building blocks
13,415NaMe613
Object-oriented Programming
Fundamentals
7 kyu
What a "Classy" Song
5,142this is my username
Fundamentals
Object-oriented Programming
8 kyu
Playing with cubes II
9,029Jotha
Fundamentals
Object-oriented Programming
7 kyu
Fun with ES6 Classes #3 - Cuboids, Cubes and Getters
6,585donaldsebleung
Fundamentals
Object-oriented Programming
7 kyu
Fun with ES6 Classes #4 - Cubes and Setters
5,933donaldsebleung
Fundamentals
Object-oriented Programming
7 kyu
Fun with ES6 Classes #2 - Animals and Inheritance
14,163donaldsebleung
Fundamentals
Object-oriented Programming
7 kyu
Refactored Greeting
12,132jhoffner
Object-oriented Programming
Refactoring
8 kyu
Basic subclasses - Adam and Eve
19,447hansrusten
Fundamentals
Object-oriented Programming
7 kyu
Combine objects
9,702matthewglover
Arrays
Fundamentals
8 kyu
Take an Arrow to the knee, Functionally
15,100matt c
Arrays
Strings
Fundamentals
7 kyu
Colour Association
9,832nogainbar
Fundamentals
6 kyu
Primorial Of a Number
7,175MrZizoScream
Fundamentals
Arrays
Number Theory
7 kyu
Coding Meetup #5 - Higher-Order Functions Series - Prepare the count of languages
8,328PiotrBerebecki
Functional Programming
Data Structures
Arrays
Fundamentals
Algorithms
7 kyu
Digits Average
1,811marbiru
Algorithms
6 kyu
Find the most frequently occurring elements in arrays
507PiotrBerebecki
Algorithms
Data Structures
Arrays
Data Science
7 kyu
Find Count of Most Frequent Item in an Array
14,027Fosna
Data Structures
Fundamentals
7 kyu
Palindrome Pairs
730smepple
Lists
Strings
Fundamentals
7 kyu
Sum The Array
1,208vasekhlav
Arrays
Fundamentals
7 kyu
GA-DE-RY-PO-LU-KI cypher
2,904dcieslak
Fundamentals
Ciphers
Cryptography
7 kyu
Map over a list of lists
2,242Paul Robertson
Fundamentals
Lists
6 kyu
"this" is an other problem
3,138ZozoFouchtra
Object-oriented Programming
Debugging
Language Features
7 kyu
Numbers to Objects
4,642PG1
Fundamentals
Strings
Arrays
Retired
Can you fix this Script? (retired)
9Kasimonsan
Status:Retired
Estimated Rank:
7 kyu
7 kyu
LinkedList -> Array
5,385nivrad00
Data Structures
Arrays
Fundamentals
7 kyu
Make Class
2,573Jomopipi
Object-oriented Programming
Algorithms