jQuery to remove an option from drop down list, given option's text/value

$("option[value='foo']").remove();

or better (if you have few selects in the page):

$("#select_id option[value='foo']").remove();

Once you have localized the dropdown element

dropdownElement = $("#dropdownElement");

Find the <option> element using the JQuery attribute selector

dropdownElement.find('option[value=foo]').remove();

$('#id option').remove();

This will clear the Drop Down list. if you want to clear to select value then $("#id option:selected").remove();

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