Web.File.Blob

data Blob

fromString :: String -> MediaType -> Blob

Creates a String with the given Mediatype For example:

myBlob = fromString (unsafeStringify { name: "Carl", age: 25 }) (MediaType "application/json")

fromArray :: Array String -> MediaType -> Blob

Creates a Blob from an Array of strings with the given Mediatype

type_ :: Blob -> Maybe MediaType

MediaType of the data contained in the Blob. Returns Nothing if the MediaType is unknown.

size :: Blob -> Number

The size (in bytes) of the data contained in the Blob.

newtype StartByte

An index into the Blob indicating the first byte to include in the new Blob. If you specify a negative value, it's treated as an offset from the end of the string toward the beginning. For example, -10 would be the 10th from last byte in the Blob. If you specify a value for start that is larger than the size of the source Blob, the returned Blob has size 0 and contains no data.

Constructors

• StartByte ByteIdx

newtype EndByte

An index into the Blob indicating the first byte that will not be included in the new Blob (i.e. the byte exactly at this index is not included). If you specify a negative value, it's treated as an offset from the end of the string toward the beginning. For example, -10 would be the 10th from last byte in the Blob. The default value is size.

Constructors

• EndByte ByteIdx

data ByteIdx

idxFromInt :: Int -> ByteIdx

Creates ByteIdx from Int value

idxFromNumber :: Number -> ByteIdx

Creates ByteIdx from Number value using Math.round.

slice :: MediaType -> StartByte -> EndByte -> Blob -> Blob

Creates a new Blob object (with specified MediaType), containing the data in the specified range of bytes of the source Blob, by setting .

slice' :: StartByte -> EndByte -> Blob -> Blob

Creates a new Blob object containing the data in the specified range of bytes of the source Blob.