I have input field for year & I need a regex for validation it.
I have such code: ^([12]d)?(dd)$.
But I want allow to validate only years in certain range (1990-2010, for example). How can I do it?
Edit. range must be 1950-2050
Try this:
1990 – 2010:
/^(199d|200d|2010)$/
1950 – 2050:
/^(19[5-9]d|20[0-4]d|2050)$/
Other examples:
1945 – 2013:
/^(194[5-9]|19[5-9]d|200d|201[0-3])$/
1812 – 3048:
/^(181[2-9]|18[2-9]d|19dd|2d{3}|30[0-3]d|304[0-8])$/Basically, you need to split your range into effortless “regexable” chunks:
1812-3048: 1812-1819 + 1820-1899 + 1900-1999 + 2000-2999 + 3000-3039 + 3040-3048 regex: 181[2-9] 18[2-9]d 19dd 2d{3} 30[0-3]d 304[0-8]