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Remove double comma upon executing my Jquery code

Hi,

I have a textarea with the following list in it 736 4937 587 795 955

1. enter this list in a textarea 736 4937 587 795 955

2.. run my jquery: the output will be this 736, 4937, 587, 795, 955

   var str = $('#ItemList').val();
            str = $('#ItemList').val().replace(/(?:\r\n|\r|\n|\s)/g, ', ');
            $('#ItemList').val(str);

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3. now the user decide to run my jquery again: the user will get this output for running my query again 736,, 4937,, 587,, 795,, 955

4. How can I fix the jquery to say:

if the data in my textarea already has a comma and space between them then don't do anything.

only separate my list if there is no comma followed by a space between them.

I just don't wont the double comma if the user kept on clicking the button.

Thank you for your help,

Lulu50

leakim971

   var str = $('#ItemList').val();
if( str.indexOf(", ") < 0) 
            str = $('#ItemList').val().replace(/(?:\r\n|\r|\n|\s)/g, ', ');

            $('#ItemList').val(str);

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lulu50

ASKER

leakim971

it looks good!!!

how can I say don't put comma on the last white space
so if I add a white space at the end of my list I'll get this

736, 4937, 587, 795, 955,

I want to say don't put any comma at the end of the list.

var str = $('#ItemList').val();
if (str.indexOf(",") < 0)
str = $('#ItemList').val().replace(/(?:\r\n|\r|\n|\s)/g,', ');

$('#ItemList').val(str);

ASKER CERTIFIED SOLUTION

leakim971

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lulu50

ASKER

leakim971

That is fabuleux my friend!!!!!

Thank you for all your help!!!!

lulu50

ASKER

bravo comme toujours!!!

Merci beaucoup