Javascript syntax error in Date object

Question

I have the following function in Javascript

function validateDates() {
Date fromDateObj = Date.parse(GetControlDate('CalDate'));
Date toDateObj = Date.parse(GetControlDate('ToDate'));
}

The two lines are causing a syntax error saying 'missing ';' before statement'. I can't figure out what's causing this, if I replace those lines with a simple alert statement it works fine, so I know the issue is in those lines. Also replacing those function calls GetControlDate('CalDate') with an actual date string doesn't fix the issue either. Can anyone tell me what the issue is?

Changing Date by var keyword should fix your problem

Jhankar Mahbub
– Jhankar Mahbub

2013-09-16 14:15:45 +00:00
Commented Sep 16, 2013 at 14:15 — Jhankar Mahbub
– Jhankar Mahbub, Commented Sep 16, 2013 at 14:15

Jhankar Mahbub · Accepted Answer · 2013-09-16 14:13:58Z

2

Javascript is weak type. all variable is "var" other than strong type in Java or C#. Hence use var instead of Date

function validateDates() {
    var fromDateObj = Date.parse(GetControlDate('CalDate'));
    var toDateObj = Date.parse(GetControlDate('ToDate'));
}

answered Sep 16, 2013 at 14:13

Jhankar Mahbub

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Comments

gen_Eric · Accepted Answer · 2013-09-16 14:14:18Z

2

JavaScript doesn't have "typed" variables. You don't need the Date before the variable name, you need var.

Also, Date.parse returns an int (the UNIX timestamp), not a Date object.

You want:

function validateDates() {
    var fromDateObj = new Date(GetControlDate('CalDate'));
    var toDateObj = new Date(GetControlDate('ToDate'));
}

answered Sep 16, 2013 at 14:14

gen_Eric

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Comments

Guillaume Algis · Accepted Answer · 2013-09-16 15:24:51Z

1

Date is not a valid datatype for a variable use a weakly typed var.

edited Sep 16, 2013 at 15:24

Guillaume Algis

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answered Sep 16, 2013 at 14:49

Jhankar

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Comments

nnnnnn · Accepted Answer · 2013-09-16 14:11:24Z

1

Use var rather than Date to declare your variables:

function validateDates() {
    var fromDateObj = Date.parse(GetControlDate('CalDate'));
    var toDateObj = Date.parse(GetControlDate('ToDate'));
}

JS variables aren't fixed to a particular type of value and thus aren't declared with Date or int or whatever.

answered Sep 16, 2013 at 14:11

nnnnnn

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