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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.

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7 kyu
Scoring Tests
3,205CajunAzn7
Arrays
Fundamentals
7 kyu
Invalid Input - Error Handling #1
2,859matt c
Strings
Fundamentals
7 kyu
char_to_ascii
1,444kromitj
Strings
Parsing
Fundamentals
7 kyu
Big number problem
227bereket2015
Fundamentals
7 kyu
Not all but sometimes all
1,123joh_pot
Strings
Fundamentals
7 kyu
Capitalize first letter of a string
1,156donaldsebleung
Fundamentals
Object-oriented Programming
Regular Expressions
7 kyu
Valid HK Phone Number
1,114donaldsebleung
Regular Expressions
Fundamentals
7 kyu
Training JS #40: Regular Expression--"|", "[]" and "()"
1,149myjinxin2015
Fundamentals
Regular Expressions
Tutorials
Retired
Count the Characters (retired)
3,679davidhu2000
Fundamentals
Regular Expressions
Algorithms
7 kyu
Replace all items
3,429wichu
Fundamentals
Arrays
Lists
Regular Expressions
7 kyu
Hit Count
3,201glenoakes
Arrays
Fundamentals
7 kyu
DigitAll
657user2821739
Fundamentals
Strings
Regular Expressions
Algorithms
7 kyu
Identical Elements
2,584ArtOfCode
Arrays
Fundamentals
6 kyu
The Desperate Rocket Scientist
1,135Cito
Arrays
Puzzles
Retired
Strain (retired)
76Lusina
Status:Retired
Estimated Rank:
6 kyu
Algorithms
Fundamentals
6 kyu
multiFilter
2,640gperales
Functional Programming
Fundamentals
6 kyu
Determine the date by the day number
1,463LarisaOvchinnikova
Fundamentals
Date Time
Algorithms