N/workbook Module
workbook.createExpression()
Method Description: Creates an expression, that includes a function ID and parameters. Expressions can be used to create a pivot definition, a chart definition, a data dimension item, a measure, a conditional filter, and a dimension sort.
Returns: workbook.Expression
Supported Script Types: Server scripts For more information, see SuiteScript 2.0 Script Types.
Governance: None
Module: N/workbook Module
Sibling Module Members: N/workbook Module Members
Since: 2020.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=workbook.createExpression(options)

// Code Example 1

// Add additional code

//...

// Create a basic Expression

var myExpression = workbook.createExpression({

    functionId: query.Operator.EMPTY

});



// Create a complete Expression

var myExpression = workbook.createExpression({

    functionId: query.Operator.EQUAL,

    parameters: {

        parm1: 15

    }

});

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_159051315304.html