jquery - How to make the Select Box Value selected to specific value "ABC" when new row is being added to table -

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i have new row added table buttton click , have select element each row , name "code[]".i have make value "abc" selected when new row being added table

alert($('#mytabl tr:last :input').find('input[name="code[]"]').children($('option[value=abc]')).attr('selected','selected'));  above statement no effect being done

it seems selector overly complicated, , not selecting <select> element, looking <input> inside :input currently, try instead:

$('#mytabl tr:last select[name="code[]"]').val('abc');

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