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Within LTS Haskell 24.31 (ghc-9.10.3)

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  1. fromList :: (Ord k, MonoidNull v) => [(k, v)] -> MonoidMap k v

    monoidmap-internal Data.MonoidMap.Internal

    Constructs a MonoidMap from a list of key-value pairs. If the list contains more than one value for the same key, values are combined together in the order that they appear with the (<>) operator. Satisfies the following property for all possible keys k: 

    get k (fromList kvs) ==
foldMap snd (filter ((== k) . fst) kvs)
    Satisfies the following round-trip property: 
    fromList (toList m) == m

    Examples

    With String values: 
    >>> fromList [(1,"a"), (2,"x"), (1,"b"), (2,"y"), (1,"c"), (2,"z")]
fromList [(1,"abc"), (2,"xyz")]

  2. fromList :: Ord k => [(k, v)] -> Map k v

    monoidmap-internal Data.MonoidMap.Internal.RecoveredMap

    No documentation available.

  3. fromList :: [Int] -> IntMultiSet

    multiset Data.IntMultiSet

    O(t*min(n,W)). Create a multiset from a list of elements.

  4. fromList :: Ord a => [a] -> MultiSet a

    multiset Data.MultiSet

    O(t*log t). Create a multiset from a list of elements.

  5. fromList :: HeadedParsec Void Text FromClause

    postgresql-syntax PostgresqlSyntax.Parsing

    No documentation available.

  6. fromList :: FromClause -> TextBuilder

    postgresql-syntax PostgresqlSyntax.Rendering

    No documentation available.

  7. fromList :: MonadMoment m => [a] -> Event time -> m (Event a)

    reactive-midyim Reactive.Banana.MIDI.Pattern

    No documentation available.

  8. fromList :: (SExpr t -> Either String a) -> SExpr t -> Either String [a]

    s-cargot Data.SCargot.Repr.Basic

    Utility function for parsing a list of things.

  9. fromList :: (RichSExpr t -> Either String a) -> RichSExpr t -> Either String [a]

    s-cargot Data.SCargot.Repr.Rich

    Utility function for parsing a proper list of things. 

    >>> fromList fromAtom (L [A "this", A "that", A "the-other"])
Right ["this","that","the-other"]

>>> fromList fromAtom (DL [A "this", A "that"] "the-other"])
Left "asList: expected proper list; found dotted list"

  10. fromList :: (WellFormedSExpr t -> Either String a) -> WellFormedSExpr t -> Either String [a]

    s-cargot Data.SCargot.Repr.WellFormed

    Utility function for parsing a list of things. 

    >>> fromList fromAtom (L [A "this", A "that", A "the-other"])
Right ["this","that","the-other"]

>>> fromList fromAtom (A "pachyderm")
Left "asList: expected proper list; found dotted list"

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