Single fields: integer field is accepting hyphen (-)

[JosvaPrasath]

Hi Al,

In our project we are using json form schema, and for one of the fields we are using the data type as "integer", ideally it should allow only numbers and should not allow letters, special characters (@#$%&*, etc..). It is working fine except that it is accepting **hyphen (-) **. Since it is accepting hyphen (-) it is causing other validation issues. has anyone encountered this issue? 

Any help would be much appreciated.

Warm regards,
Guruprasath M,
Full stack developer.