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Within LTS Haskell 23.23 (ghc-9.8.4)

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  1. singleton :: a -> [a]

    base Data.List

    Construct a list from a single element.

    Examples

    >>> singleton True
[True]

    >>> singleton [1, 2, 3]
[[1,2,3]]

    >>> singleton 'c'
"c"

  2. singleton :: a -> NonEmpty a

    base Data.List.NonEmpty

    Construct a NonEmpty list from a single element.

  3. singleton :: a -> [a]

    base GHC.OldList

    Construct a list from a single element.

    Examples

    >>> singleton True
[True]

    >>> singleton [1, 2, 3]
[[1,2,3]]

    >>> singleton 'c'
"c"

  4. singleton :: Word8 -> ByteString

    bytestring Data.ByteString

    O(1) Convert a Word8 into a ByteString

  5. singleton :: Char -> ByteString

    bytestring Data.ByteString.Char8

    O(1) Convert a Char into a ByteString

  6. singleton :: Word8 -> ByteString

    bytestring Data.ByteString.Lazy

    O(1) Convert a Word8 into a ByteString

  7. singleton :: Char -> ByteString

    bytestring Data.ByteString.Lazy.Char8

    O(1) Convert a Char into a ByteString

  8. singleton :: Word8 -> ShortByteString

    bytestring Data.ByteString.Short

    O(1) Convert a Word8 into a ShortByteString

  9. singleton :: Word8 -> ShortByteString

    bytestring Data.ByteString.Short.Internal

    O(1) Convert a Word8 into a ShortByteString

  10. singleton :: Char -> Text

    text Data.Text

    O(1) Convert a character into a Text. Performs replacement on invalid scalar values.

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