!! 和 ||
!!
what-is-the-not-not-operator-in-javascript,
||
, 實例如x = x || y
Logical_Operators
what-does-the-construct-x-x-y-mean
如何比較日期?
compare-two-dates-with-javascript,
trying-to-add-3-days-in-milliseconds-to-current-date
!!
what-is-the-not-not-operator-in-javascript,
||
, 實例如x = x || y
Logical_Operators
what-does-the-construct-x-x-y-mean
compare-two-dates-with-javascript,
trying-to-add-3-days-in-milliseconds-to-current-date