1 Error is a function

     2 EvalError is a function

     3 RangeError is a function

     4 ReferenceError is a function

     5 SyntaxError is a function

     6 TypeError is a function

     7 URIError is a function

     8 Error.arity 1

     9 EvalError.arity 1

    10 RangeError.arity 1

    11 ReferenceError.arity 1

    12 SyntaxError.arity 1

    13 TypeError.arity 1

    14 URIError.arity 1

    15 true

    16 my error

    17 Error

    18 thrown @ 49

    19 true

    20 ReferenceError

    21 "foo" is not defined

    22 true

    23 TypeError

    24 Cannot call undefined

    25 Error

    26 EvalError

    27 RangeError

    28 ReferenceError

    29 SyntaxError

    30 TypeError

    31 URIError