/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 vote160 views1 answer
Dynamically change active menu item on onclick jquery
Javascript jQuery
3 votes144 views3 answers
Jquery get img src
Javascript jQuery
0 vote145 views1 answer
Jquery add event after page load
Javascript jQuery
115 votes327 views6 answers
Checkbox jquery checked
Javascript jQuery
0 vote146 views1 answer
Differences between detach(), hide() and remove() - jQuery
Javascript jQuery
0 vote139 views1 answer
Get form data as object jquery
Javascript jQuery
100 votes211 views6 answers
Jquery check if checkbox is not checked
Javascript jQuery
0 vote188 views2 answers
Show 10 entries datatable jquery hide
Javascript jQuery
2 votes150 views3 answers
Insertbefore jquery
Javascript jQuery
1 vote147 views1 answer
Detecting screen width in jquery
Javascript jQuery