GHCJS.Prim

Documentation

newtype JSVal

Constructors

JSVal ()

data WouldBlockException

If a synchronous thread tries to do something that can only be done asynchronously, and the thread is set up to not continue asynchronously, it receives this exception.

Constructors

WouldBlockException

Instances

Show WouldBlockException

Methods

showsPrec :: Int -> WouldBlockException -> ShowS

show :: WouldBlockException -> String

showList :: [WouldBlockException] -> ShowS

Exception WouldBlockException

Methods

toException :: WouldBlockException -> SomeException

fromException :: SomeException -> Maybe WouldBlockException

displayException :: WouldBlockException -> String

data JSException

Constructors

JSException JSVal String

Instances

Show JSException

Methods

showsPrec :: Int -> JSException -> ShowS

show :: JSException -> String

showList :: [JSException] -> ShowS

Exception JSException

Methods

toException :: JSException -> SomeException

fromException :: SomeException -> Maybe JSException

displayException :: JSException -> String

mkJSException :: JSVal -> IO JSException

fromJSString :: JSVal -> String

Low-level conversion utilities for packages that cannot depend on ghcjs-base

returns an empty string if the JSVal does not contain a string

toJSString :: String -> JSVal

toJSArray :: [JSVal] -> IO JSVal

fromJSArray :: JSVal -> IO [JSVal]

fromJSInt :: JSVal -> Int

returns zero if the JSVal does not contain a number

toJSInt :: Int -> JSVal

isNull :: JSVal -> Bool

isUndefined :: JSVal -> Bool

jsNull :: JSVal

getProp :: JSVal -> String -> IO JSVal

getProp' :: JSVal -> JSVal -> IO JSVal