cc8e91e9_e_Specification__HTML_version___Input_Type
[Result] The result is 1 if the argument is true. The result is +0 if the argument is false. [Input Type] 
Boolean
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 (HTML version)
Input Type