@extra-array/unfoldr.min

Builds array from a seed value (dual to foldr).

This is part of package extra-array.

This is browserified, minified version of @extra-array/unfoldr.
It is exported as global variable array_unfoldr.
CDN: unpkg, jsDelivr.

array.unfoldr(x, fn, v);
// fn: unreduce fn (v, i, x)
// v:  initial value of accumulator
// --> built array

const array = require('extra-array');

array.unfoldr(v => v===0? undefined : [v, v-1], 10);
// [ 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 ]

references

• Data.List.unfoldr: Haskell