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I am storing multiple selected option value to the textbox and concatenate with comma but dont want to add in last of the string. hear is my code.
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
<select id="garden" name="garden" multiple="multiple">
<option value="1">Flowers</option>
<option value="2">Shrubs</option>
<option value="3">Trees</option>
<option value="4">Bushes</option>
<option value="5">Grass</option>
<option value="6">Dirt</option>
</select>
<input type="text" name="store" id="store" />
<script>
$("#garden").change(function () {
var str = "";
$("select option:selected").each(function () {
str += $(this).val() + ",";
});
$('#store').val(str).attr('rows',str.length) ;
})
.trigger('change');
</script>
</body>
</html>
504
To remove the leading and trailing comma from a string, call the replace() method with the following regular expression as the first parameter - /(^,)|(,$)/g and an empty string as the second. The method will return a copy of the string without the leading or trailing comma. Copied!
Using awk and tac : The awk command is a simple one to do the substitution the first time the pattern is seen. tac reverses the order of the lines in the file, so the awk command ends up removing the last comma. may be more efficient. Save this answer.
You could do this using .substring():
$('#store').val(str.substring(0,str.length-1)).attr('rows',str.length-1) ;
simply use,
in palce of this
$('#store').val(str).attr('rows',str.length) ;
use
str=str.slice(0,-1);
This is enough to omit the last comma.
28
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