Would you like to clone this notebook?
When you clone a notebook you are able to make changes without affecting the original notebook.
const R = require('ramda');
const list = [ 'abc', 'def' ];
const split = x => x.split('');
const nestedLists = R.map(split, list);
But now we have an Array<Array<string>> which is no good. Let's flatten that back out...
const backToList = R.flatten(nestedLists);
Turns out this pattern of `map` then `flatten` (often called join) can be written with one operation called `chain`.
R.chain(split, list)
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