Question

What would be regular Expression for validating Date format like mm/yyyy. I am new to regular expressions

$.validator.addMethod(
"customDate",
function(value, element) {
    return value.match(?);
},
"Please enter a date in the format mm/yyyy"
);

Can anyone help me in this regard?

Answer 1

Expanding on RobG’s function:

function validateDate(s) {
  return /^([1-9]|1[0-2])\/[12]\d{3}$/.test(s);
}

([1-9]|1[0-2]) checks it is either 1–9 or 10–12.
[12]\d{3} makes sure the year is 1 or 2 followed by three numbers (so valid ranges in this case would be 1000–2999; if you need more specific values, please update your question.

EDIT
If you want month values of 01-12 instead, change the regex to:

/^(0[1-9]|1[0-2])\/[12]\d{3}$/