do you mean masking like entering passwords?

eg. single line text control does support that

Hi Marian,

Thank you for your reply. The masking that i intend to do is mask formatting for say phone number and date like on this link:

digitalbush » Masked Input Plugin

Any idea is appreciated. Thank you.

ah, ok.

that is not available OOTB, you will have to script it on your own.

OOTB is just available regular expression validation. ie. control/form will not validate until input text does meet given regex pattern, but it will not provide visual hint what is expected pattern. you would need to define control's hint with expected format or place an another label/text control in the form which would explain what is expected format.

similar topic has been started here using jQuery mask plugin for input field , working in design but not working in the display mode. , however, author haven't posted whether he managed to get it working or not.

I do not see any mask() function available on single line text control in preview mode on NF2013 on-prem.

not sure what env. you are talking about.

As stated earlier you can use JS to pull this off.