A common validation for such an input would be to limit the options that can be selected (minimum /maximum to be selected).
You can use the minlength/maxlength/rangelength validations for check box group as well.
Simply the validation will remove all non-digits and permit only phone numbers with 10 digits. I have used the same code but have programmed the edit template to show in modal-popup(bootstrap). The code below shows how to custom place the error message.The HTML code of the radio group first: See the error Placement() handler.The validating phone number is an important point while validating an HTML form.
In this page we have discussed how to validate a phone number (in different format) using Java Script : At first, we validate a phone number of 10 digits with no comma, no spaces, no punctuation and there will be no sign in front the number.
The ‘depends’ parameter takes a function that returns true or false.
The function should return true if the validation is enabled.
function checks the option selected for ‘channel’ and returns true or false depending on the selection.
You can pass a j Query selector string to the ‘depends’ parameter as well.
Explain to your user what is wrong and suggest solutions.