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Check DateFormat dd/MM/yyyy using JavaScript
Hemlata Kushwaha
Aug 12
2015
Code
6.1
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<script>
function
checkvaliddateformat() {
var
dateofbirth = document.getElementById(
"txtDateOfBirth"
);
var
dob = dateofbirth.value.split(
'/'
);
var
dd = dob[0];
var
mm = dob[1];
var
yy = dob[2];
if
(dd ==
''
|| mm ==
''
|| yy ==
''
|| isNaN(dd) || isNaN(mm) || isNaN(yy) || dd == 0 || mm == 0 || yy == 0) {
alert(
"Invalid Date of Birth"
);
return
false
;
}
else
{
if
(dob.length != 3) {
alert(
"Please enter Date Of Birth in (dd/mm/yyyy) format"
);
return
false
;
}
else
{
if
((mm == 4 || mm == 6 || mm == 9 || mm == 11) && dd > 30) {
alert(
"Please enter Day less than equal to 30"
);
return
false
;
}
if
((mm == 1 || mm == 3 || mm == 5 || mm == 7 || mm == 8 || mm == 10 || mm == 12) && dd > 31) {
alert(
"Please enter Day less than equal to 31"
);
return
false
;
}
if
(mm == 2) {
var
lyear =
false
;
if
((!(yy % 4) && yy % 100) || !(yy % 400)) {
lyear =
true
;
}
if
((lyear ==
false
) && (dd >= 29)) {
alert(
'Invalid date format in February!'
);
return
false
;
}
if
((lyear ==
true
) && (dd > 29)) {
alert(
'Invalid date format in February!'
);
return
false
;
}
}
if
(parseFloat(dob[1]) > 12) {
alert(
"Please enter Month less than equal to 12"
);
return
false
;
}
if
(dob[2].length != 4) {
alert(
"Please enter Year in Four Digit (yyyy)"
);
return
false
;
}
}
}
}
</script>
Validate date formatdd/MM/yyyy