Js intercepts two kinds of method of string and distinction detailed explanation
- 2020-03-26 23:03:40
- OfStack
Var long2 = "1988-0 w - 07";
Alert (long2. Substring (0, 4) + "-- -- -- -- -- -" + long2. Substring (5, 6)); 1988 -- -- -- -- -- - 0
Alert (long2. Substr (0, 4) + "-- -- -- -- -- -" + long2, substr (5, 2)); 1988-0 w
Coordinates when substring is intercepted; Including the front Not including the back