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dd/mm/yyyy validation. Including leap year check
function Validator() {}
Validator.min = function(number, min) {
return number >= min;
}
Validator.max = function(number, max) {
return number <= max;
}
Validator.between = function(number, min, max) {
return Validator.min(number, min) && Validator.max(number, max)
}
/**
* dd/mm/yyyy validation
* @param {string} date
* @return {boolean}
*/
Validator.date = function(date) {
var regex = /^(0?[1-9]|[12][0-9]|3[01])[\/\-](0?[1-9]|1[012])[\/\-]\d{4}$/;
if (!regex.test(date)) return false;
var pdate = date.split('/');
if (pdate.length < 3) pdate = date.split('-'); // if separator is not '/'
if (pdate < 3) return false; // check if array length < 3
var d = parseInt(pdate[0]);
var m = parseInt(pdate[1]);
var y = parseInt(pdate[2]);
var daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (!Validator.between(m, 1, 12)) return false;
if ((!(y % 4) && y % 100) || !(y % 400)) {
daysInMonth[1] = 29; // leap year
}
return d <= daysInMonth[--m];
}
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