/Javascript/jQuery/Jquery add option if not exist

Jquery add option if not exist

var optionExists = ($('#columnsAvailable option[value=' + $(this).val() + ']').length > 0);

if(!optionExists)
{
    $('#columnsAvailable').append("<option value='"+$(this).val()+"'>"+$(this).text()+"</option>");
}

Source: stackoverflow.com

Similar codes

0 vote238 views1 answer
Jquery click hold down
Javascript jQuery
5 votes256 views2 answers
Jquery in array
Javascript jQuery
5 votes267 views2 answers
Copy text to clipboard jquery
Javascript jQuery
1 vote240 views1 answer
Jquery get all file input elements
Javascript jQuery
18 votes271 views5 answers
JQuery AJAX form submit
Javascript jQuery
0 vote247 views1 answer
Jquery onlcikc css
Javascript jQuery
0 vote262 views1 answer
Jquery datatable destroy and recreate
Javascript jQuery
0 vote257 views1 answer
Alphabet only in jquery
Javascript jQuery
1 vote274 views4 answers
How to get the computer date and time jquery
Javascript jQuery
0 vote259 views1 answer
Jquery each tr except first
Javascript jQuery