javascript - Empty Values apps script google forms -

i have trigger onformsubmit google form. want know if particular drop down list has answer or not. suppose have code of following form , drop down list in form name country2

    function onformsubmit(e) {     var answerobject = e.namedvalues();     var numcountries = 1;     if (namedvalues("country2") != // goes here {          numcountries++;    } 

should value "" or null or else?

from https://developer.mozilla.org/en-us/docs/web/javascript/reference/statements/if...else

any value not undefined, null, 0, nan, or empty string (""), , object, including boolean object value false, evaluates true when passed conditional statement.

considering above, try like:

if (namedvalues("country2")) {      numcountries++; }