how to prevent to change selectbox value if i say no to confirm

Question

i m using a select box of country, when user select a country then add branch link appears and user add branches under that country, but when user want to change country then al

Answer 1

The following is working for me (Chrome). Above not. In case of this.defaultValue, it goes to empty other than default selected text/value.

if(confirm('sure?')){
    //do sth;
}else{
    this.selectedIndex = 0; // if cancel the confirm window, option remains as unchanged.
}