CODEWITHSUNDEEP
javascriptjquery
Jammer
Jammer

Reputation: 10208

Javascript Checking for empty datepicker

I've tried every permutation of checking for this logic to work and I cannot find the right syntax.

I have the following bit of Javascript:

var d = $("#myDatepicker1").datepicker("getDate");
if ($.isEmptyObject(d)) {
    $("#dailySummaryDateSelector").datepicker("setDate", new Date());
}

When the page loads and d is evaluated Firebug shows it as Object [ ]

In the if statement I've tried:

if (d == null) {
if (d == {}) {
if (d == Object()) {
if ($.isEmptyObject(d)) {
if (d.isEmptyObject()) {

None of these work. As far as I can tell Object [ ] is an empty object so how do I actually test for that and get the contents of the if statement to execute?

Upvotes: 2

Views: 10962

Answers (2)

Jammer
Jammer

Reputation: 10208

For anyone that missed it my code was broken!

var d = $("#myDatepicker1").datepicker("getDate");
if ($.isEmptyObject(d)) {
    $("#dailySummaryDateSelector").datepicker("setDate", new Date());
}

Should have been:

var d = $("#dailySummaryDateSelector").datepicker("getDate");
if ($.isEmptyObject(d)) {
    $("#dailySummaryDateSelector").datepicker("setDate", new Date());
}

Now this works:

var d = $("#dailySummaryDateSelector").datepicker("getDate");
if (d == null) {
    $("#dailySummaryDateSelector").datepicker("setDate", new Date());
}

Upvotes: 0

KingKongFrog
KingKongFrog

Reputation: 14419

getDate()

Returns: Date

Returns the current date for the datepicker or null if no date has been selected. This method does not accept any arguments.

if($("#myDatepicker1").datepicker("getDate") === null) {
  alert("empty");
}

Upvotes: 6

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