Source the Country List into a SELECT field in suitelet script

We can source the country list into a select field of a suitelet form by sourcing “-159”.

Example:

let countryField = form.addField({

            id: ‘custpage_jj_country’,

            label: ‘Country’,

            type: serverWidget.FieldType.SELECT,

            source: “-159”

          });

NB: The value returned from this select option would be an integer. Convert the integer into the ISO format if the country’s code is required.