assoc-listlike-0.1.0.0: Association lists (list-like collections of tuples)

Data.AssocList.ListLike.Comparison

Contents

Description

Functions on association lists that make use of a Comparison on the keys.

Synopsis

# Related modules

A module that is a lot like this one:

# Sorting

sortKeys :: forall l a b. AssocList l a b => Comparison a -> l -> l Source #

Sort an association list according to a particular Comparison of its keys. This is a stable sort, so when a key appears multiple times in the input list, the ordering of its values in the resulting list remains unchanged.

>>> sortKeys defaultComparison [(2, 'b'), (3, 'c'), (2, 'a'), (4, 'd'), (2, 'e'), (1, 'f')]
[(1,'f'),(2,'b'),(2,'a'),(2,'e'),(3,'c'),(4,'d')]