Question: how to change dropdown selected value using jquery?
Answer: To display the selected drop down box value. $('#country').val(); To set a drop down box value to 'China'. ...  To set a drop down box value to 'United State'. ...  To set a drop down box value to 'Malaysia'. ...  To disable the 'United State' option in drop down box. ...  To enable the 'United State' option in drop down box.