a2378cfd_ndard_in_html5_id_toc_preview___Argument_Type
[Result] +0 [Argument Type] 
Null
U n d e f i n e d
N u l l
B o o l e a n
N u m b e r
S t r i n g
O b j e c t
ECMAScript Language Specification - ECMA-262 Edition 5.1 (complete-standard in html5.id.toc.preview)
Argument Type