N/query Module
ResultSet.columns
Property Description: An array of query return column references. The ResultSet.columns array values correspond with the ResultSet.types array values.
Type: query.Column[] (read-only)
Module: N/query Module
Parent Object: query.ResultSet
Sibling Object Members: ResultSet Object Members
Since: 2018.1
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=ResultSet.columns

// Code Example 1

// Add additional code

//...

var myCustomerQuery = query.create({

    type: query.Type.CUSTOMER

});



myCustomerQuery.columns = [

    myCustomerQuery.createColumn({

        fieldId: 'entityid'

    }),

    myCustomerQuery.createColumn({

        fieldId: 'email'

    })

];



var queryResultSet = myCustomerQuery.run();



var theColumns = queryResultSet.columns;

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_1510857693.html