maps

Documentation

Overview

Package maps contains utility functions to manage maps.

Index

• func Filter[K comparable, V any](m map[K]V, filter FilterType[K]) map[K]V
• func Merge[K comparable, V any](m1, m2 map[K]V) map[K]V
• func Sub[K comparable, V any](m1, m2 map[K]V) map[K]V
• type FilterType
  • func FilterBlacklist[K comparable](blacklist ...K) FilterType[K]
  • func FilterWhitelist[K comparable](whitelist ...K) FilterType[K]

Functions

func Filter

func Filter[K comparable, V any](m map[K]V, filter FilterType[K]) map[K]V

Filter filters a map, returning a duplicate which contains only the elements matching the filter function.

func Merge

func Merge[K comparable, V any](m1, m2 map[K]V) map[K]V

Merge merges two maps.

func Sub

func Sub[K comparable, V any](m1, m2 map[K]V) map[K]V

Sub removes elements of m2 from m1.

Types

type FilterType

type FilterType[K comparable] func(key K) bool

FilterType is a function type used to filter a map.

func FilterBlacklist

func FilterBlacklist[K comparable](blacklist ...K) FilterType[K]

FilterBlacklist returns a filter function returning true if the key is not the blacklist.

func FilterWhitelist

func FilterWhitelist[K comparable](whitelist ...K) FilterType[K]

FilterWhitelist returns a filter function returning true if the key is in the whitelist.