Question

how to split an array index i.e.. sample code

var parts = currentVal.split(" ");
var datePart = parts.splice(0,1);
alert("Date: " + datePart );
var timePart = parts.join(' ');

here i am validating the date time regular expression. var datePart is an array index, now i want to split datepart ….

var parts1 = datePart.split('/');
parts1.date = parseInt(parts1[0]);
parts1.month = parseInt(parts1[1]);
parts1.year = parseInt(parts1[2]);  

but it is showing uncaught type error, their is no method split(); Can any one help me how do i separate date, month, year.

Answer 1

If you’re trying to just check whether a string represents a valid date or not, I would personally recommend the magical Date object that javascript natively supports. Through some sort of wizardry it can read the date in almost any format you throw at it, and if it is an invalid date it will evaluate to the string Invalid Date.

So to check if currentVal is a valid date, do:

if (new Date(currentVal) == 'Invalid Date') {
    ... // The date is invalid
} else {
    ... // The date is valid
}

On the other hand, if you need to use a specific regex to validate the date, you could either do something like

var parts = currentVal.split(' ');
var dateParts = parts[0].split('/');
var timePart = parts[1]; // Maybe you want to split this as well?

And this would leave dateParts as an array containing the month, day and year.