[0] ifFormat [2] The format string that will be used to enter the date in the input field. This format will be honored even if the input field is hidden. [3] ``%Y/%m/%d'' [1] 
string
t y p e
s t r i n g
b o o l e a n
f u n c t i o n
i n t e g e r
a r r a y
d a t e