Array-utils

A collection of utility functions for working with arrays.

zip, unzip

Zip takes two arrays and creates an array of tuples from their elements. Unzip does the same thing backwards; takes an array of tuples and returns a tuple of arrays.

mapMax, mapMaxIndex

Find the element (or its index) for which a custom mapped value is the highest.

divide

Sort an array into two separate arrays according to a filter.

If the second flag is set, leave holes in the arrays such that the positions are preserved. Useful if you want to recombine them later.

combine

Combines multiple arrays (with holes) into one. The inverse of divide with the second flag set.

applyWithCache

Takes a mapping function and optionally an initial state, returns a function that takes an array and applies the mapper on any indices that changed since the immediate last invocation.