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Harry

const pluckDeep = key => obj => key.split('.').reduce((accum, key) => accum[key], obj) const compose = (...fns) => res => fns.reduce((accum, next) => next(accum), res) const unfold = (f, seed) => { const go = (f, seed, acc) => { const res = f(seed) return res ? go(f, res[1], acc.concat([res[0]])) : acc } return go(f, seed, [])}