Why does jQuery does not accept my #ID from the array?

Question

I'm trying to add 3 datepickers to 3 of my Input Fields so I am echoeing the following code:

This one works:

jQuery(function(){
    jQuery("#newnessdate").datepicker({
        dateFormat: \'yy-mm-dd\',
        monthNames: [\'Januar\',\'Februar\',\'März\',\'April\',\'Mai\',\'Juni\',\'Juli\',\'August\',\'September\',\'Oktober\',\'November\',\'Dezember\'],
        dayNames: [\'Sonntag\', \'Montag\', \'Dienstag\', \'Mittwoch\', \'Donnerstag\', \'Freitag\',\'Samstag\'],
        dayNamesMin: [\'So\', \'Mo\', \'Di\', \'Mi\', \'Do\', \'Fr\', \'Sa\']
    });
});

jQuery(function(){
    jQuery("#availabilitydate").datepicker({
        dateFormat: \'yy-mm-dd\',
        monthNames: [\'Januar\',\'Februar\',\'März\',\'April\',\'Mai\',\'Juni\',\'Juli\',\'August\',\'September\',\'Oktober\',\'November\',\'Dezember\'],
        dayNames: [\'Sonntag\', \'Montag\', \'Dienstag\', \'Mittwoch\', \'Donnerstag\', \'Freitag\',\'Samstag\'],
        dayNamesMin: [\'So\', \'Mo\', \'Di\', \'Mi\', \'Do\', \'Fr\', \'Sa\']
    });
});

jQuery(function(){
    jQuery("#expirydate").datepicker({
        dateFormat: \'yy-mm-dd\',
        monthNames: [\'Januar\',\'Februar\',\'März\',\'April\',\'Mai\',\'Juni\',\'Juli\',\'August\',\'September\',\'Oktober\',\'November\',\'Dezember\'],
        dayNames: [\'Sonntag\', \'Montag\', \'Dienstag\', \'Mittwoch\', \'Donnerstag\', \'Freitag\',\'Samstag\'],
        dayNamesMin: [\'So\', \'Mo\', \'Di\', \'Mi\', \'Do\', \'Fr\', \'Sa\']
    });
});

This does not:

var dateIds = [
    "#newnessdate", 
    "#availabilitydate",
    "#expirydate"
];

for (var i = 0; i < dateIds.length; i++)
{
    jQuery(function(){
        jQuery(dateIds[i]).datepicker({
            dateFormat: \'yy-mm-dd\',
            monthNames: [\'Januar\',\'Februar\',\'März\',\'April\',\'Mai\',\'Juni\',\'Juli\',\'August\',\'September\',\'Oktober\',\'November\',\'Dezember\'],
            dayNames: [\'Sonntag\', \'Montag\', \'Dienstag\', \'Mittwoch\', \'Donnerstag\', \'Freitag\',\'Samstag\'],
            dayNamesMin: [\'So\', \'Mo\', \'Di\', \'Mi\', \'Do\', \'Fr\', \'Sa\']
        });
    });
}

I have tested it a lot and don't get it why it not works but in the line

jQuery(dateIds[i]).datepicker({

it seems, the jQuery function does not accept the strings from the array as strings. Can you help me?

Answer 1

$("#newnessdate, #availabilitydate, #expirydate").datepicker({
            dateFormat: \'yy-mm-dd\',
            monthNames: [\'Januar\',\'Februar\',\'März\',\'April\',\'Mai\',\'Juni\',\'Juli\',\'August\',\'September\',\'Oktober\',\'November\',\'Dezember\'],
            dayNames: [\'Sonntag\', \'Montag\', \'Dienstag\', \'Mittwoch\', \'Donnerstag\', \'Freitag\',\'Samstag\'],
            dayNamesMin: [\'So\', \'Mo\', \'Di\', \'Mi\', \'Do\', \'Fr\', \'Sa\']
        });
    });
}