URIError

js

UTC

Date

UndefOr

js

UndefOrOps

js

Undefined

js prim

UnsupportedOperationException

scala

unary_!

~~Any~~ Dynamic Boolean BooleanReflectiveCall

unary_+

Dynamic Number IntegerReflectiveCall NumberReflectiveCall RuntimeLong

unary_-

Dynamic Number IntegerReflectiveCall NumberReflectiveCall RuntimeLong

unary_~

Dynamic Number IntegerReflectiveCall NumberReflectiveCall RuntimeLong

undef2undefOr

UndefOr

undefOr2jsAny

UndefOr

undefOr2ops

UndefOr

undefined

js

unshift

Array

update

Array ArrayOps Dictionary WrappedArray

updateDynamic

Dynamic