Kata Four in JavaScript

After a little offline chat with Marco Fabbri, I tried to find more Kata programming problems to implement in JavaScript. (Note that not every Kata is indeed a programming problem.) I stumbled upon another easy one: Kata Four, involving a couple of simple operations on two different sets of tabular data, and a design challenge [...]

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Kata Six in JavaScript

Trying to find some new and simple JavaScript programming exercise, I remembered how enjoyable was to work on Kata Six by Dave Thomas, where you are given a list of words and have to group the anagrams amongst them.
I was inspired by a Python solution I found way back, which was using dictionaries and the [...]

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