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GHC 10.0.0.20260917 · lts/ghc-10.0.x · 8174fa4 · 2026-10-11

Modulerio-0.1.25.0Haskell2010

RIO.HashMap.Partial

Strict HashMap partial functions. Import as:

import qualified RIO.HashMap.Partial as HM'
  • 1 value
  • Packagerio-0.1.25.0
  • Exports1
  • LanguageHaskell2010
  • LicenceMIT
  • SourcePartial.hs

Basic interface

1 declaration
value(!) :: (Hashable k, HasCallStack) => HashMap k v -> k -> v
#

O(\log n) Return the value to which the specified key is mapped. Calls error if this map contains no mapping for the key.