N/search Module
Column.formula
Property Description: Formula used for a search column as a string. To set this value, you must use formulatext, formulanumeric, formuladatetime, formulapercent, or formulacurrency.
Type: string
Supported Script Types: All script types For more information, see SuiteScript 2.0 Script Types.
Module: N/search Module
Since: 2015.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Column.formula

// Code Example 1

//Add additional code

//...

var columnObj = search.createColumn({

  name: 'formulatext',

  formula: "{firstname} || ', ' || {lastname}"

});

//...

//Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_454645935058.html